Best B550 Motherboards for Ryzen 3000XT CPUs (2020)

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Winner
ASUS ROG Strix B550-E Gaming AMD AM4 (3rd Gen Ryzen ATX Gaming Motherboard (PCIe 4.0, NVIDIA SLI, WiFi 6, 2.5Gb LAN, 14+2 Power Stages, Front USB 3.2 Type-C, Addressable Gen 2 RGB and Aura Sync)
Best Price
ASRock B550M Steel Legend Supports 3rd Gen AMD AM4 Ryzen/Future AMD Ryzen Processors Motherboard
ASRock B550 Phantom Gaming 4 AC Supports 3rd Gen AMD AM4 Ryzen/Future AMD Ryzen Processors Motherboard
Model
ASUS ROG Strix B550-E Gaming
ASRock B550M Steel Legend
ASRock B550 Phantom Gaming 4
Test Result
Test Result 9.9/10 Excellent July 2020
Test Result 9.7/10 Very Good July 2020
Test Result 9.5/10 Very Good July 2020
Manufacturer
ASUS
ASRock
ASRock
CPU Sockets
AM4
AM4
AM4
Max supported RAM
4666 MHz
4733 MHz
4733 MHz
Chipset
AMD B550
AMD B550
AMD B550
Performance
Value for money
Graphic Interfaces
4x PCI-E X16 4.0, 6x SATA, 3x M.2 Slots
1 PCIe 4.0 x16, 1 PCIe 3.0 x16, 1 PCIe 3.0 x1, 1 M.2 Key E for WiFi
1 PCIe 4.0 x16, 1 PCIe 3.0 x16, 2 PCIe 3.0 x1
Form Factor
ATX
ATX
ATX
Pros
  • Very good performance with a good CPU power supply
  • Six SATA 6GBit/s interfaces and four USB 3.1 Gen2 sockets
  • PCIe 4.0 support on two PEG slots
  • WLAN-ax and Bluetooth 5.0
  • DisplayPort Connectivity for APUs
  • SATA M.2 and Ultra M.2 sockets
  • Build Quality
  • Best price-performance ratio
  • Affordable price point
  • Onboard diagnostic LEDs
  • Ample RGB capability and expansion
  • Sufficient performance available
Cons
  • BIOS operation with the mouse very slow
  • Overclocking stability
  • Performance not as good as more expensive models
Winner
ASUS ROG Strix B550-E Gaming AMD AM4 (3rd Gen Ryzen ATX Gaming Motherboard (PCIe 4.0, NVIDIA SLI, WiFi 6, 2.5Gb LAN, 14+2 Power Stages, Front USB 3.2 Type-C, Addressable Gen 2 RGB and Aura Sync)
Model
ASUS ROG Strix B550-E Gaming
Test Result
Test Result 9.9/10 Excellent July 2020
Manufacturer
ASUS
CPU Sockets
AM4
Max supported RAM
4666 MHz
Chipset
AMD B550
Performance
Value for money
Graphic Interfaces
4x PCI-E X16 4.0, 6x SATA, 3x M.2 Slots
Form Factor
ATX
Pros
  • Very good performance with a good CPU power supply
  • Six SATA 6GBit/s interfaces and four USB 3.1 Gen2 sockets
  • PCIe 4.0 support on two PEG slots
  • WLAN-ax and Bluetooth 5.0
Cons
  • BIOS operation with the mouse very slow
Best Price
ASRock B550M Steel Legend Supports 3rd Gen AMD AM4 Ryzen/Future AMD Ryzen Processors Motherboard
Model
ASRock B550M Steel Legend
Test Result
Test Result 9.7/10 Very Good July 2020
Manufacturer
ASRock
CPU Sockets
AM4
Max supported RAM
4733 MHz
Chipset
AMD B550
Performance
Value for money
Graphic Interfaces
1 PCIe 4.0 x16, 1 PCIe 3.0 x16, 1 PCIe 3.0 x1, 1 M.2 Key E for WiFi
Form Factor
ATX
Pros
  • DisplayPort Connectivity for APUs
  • SATA M.2 and Ultra M.2 sockets
  • Build Quality
  • Best price-performance ratio
Cons
  • Overclocking stability
ASRock B550 Phantom Gaming 4 AC Supports 3rd Gen AMD AM4 Ryzen/Future AMD Ryzen Processors Motherboard
Model
ASRock B550 Phantom Gaming 4
Test Result
Test Result 9.5/10 Very Good July 2020
Manufacturer
ASRock
CPU Sockets
AM4
Max supported RAM
4733 MHz
Chipset
AMD B550
Performance
Value for money
Graphic Interfaces
1 PCIe 4.0 x16, 1 PCIe 3.0 x16, 2 PCIe 3.0 x1
Form Factor
ATX
Pros
  • Affordable price point
  • Onboard diagnostic LEDs
  • Ample RGB capability and expansion
  • Sufficient performance available
Cons
  • Performance not as good as more expensive models

Best B550 Motherboards for Ryzen 3000XT CPUs

Almost a year after the launch of Zen 2, there is a second new chipset option for matching motherboards.

This proves to be so good that it should make many X570 solutions obsolete.

Because nobody really needs more than the features and performance that B550 boards offer.

The new B550 chipset from AMD is the first and cheaper alternative for PCIe 4.0 to the X570 chipset.

The new interface is primarily available for starting with the Ryzen 3000 CPUs (Matisse), depending on the board manufacturer older CPUs are also allowed.

The B550 should above all be fit for the future, because support for Renoir, Vermeer and Cezanne is guaranteed.

Almost a year after the launch of the first PCIe 4.0 platform, the B550 comes very late.

However, it could still be enough for the mass market, as the product selection of PCIe 4.0 solutions is still very limited.

Even manufacturers such as Samsung do not yet have suitable SSDs, and rumors about the launch of the 980 Pro with PCIe 4.0 within two months are being rumored.

The market leader, Nvidia, is still missing in the graphics card segment, but has already presented its ampere-chip generation as a professional solution with PCIe 4.0.

Best B550 Motherboard

The new B550 chipset can do this

The B550 chipset itself offers a total of ten PCIe 3.0 lanes, which can be used flexibly, i.e. also for other interfaces.

Compared to the B450 with PCIe 2.0, this is a significant advance.

Both are connected to the CPU via an uplink with PCIe 3.0 x4.

Twice USB 3.2 Gen 2 (10 Gbit/s), twice USB 3.2 Gen 1 (5 Gbit/s) and six times USB 2.0 (480 Mbit/s) as well as four SATA ports belong to the B550’s further interfaces.

Two of the PCIe lanes can also be configured for two additional SATA ports.

Again, PCIe 4.0 support comes only via the processor:

Ryzen 3000 brings PCIe 4.0 x16 for a graphics card and PCIe 4.0 x4 for an NVMe SSD.

In addition, there are another four USB 3.2 Gen 2 ports.

There is also the option of swapping two PCIe lanes into SATA ports.

The chipset itself does not offer PCIe 4.0 and only provides PCIe 3.0.

But this is also an advance, because B450 only offered PCIe 2.0 in this case.

Best B550 Motherboard

In addition to PCIe 4.0 via the CPU and PCIe 3.0 via the chipset, the B550 also has the support of two graphics cards ahead of the B450.

Dual GPU support was previously only available from AMD on the X chipsets.

However, whether this will be necessary in 2020 is another matter, because dual-GPU systems have never been suitable for the mass market and have had their best times long past even in the niche.

ASMedia is responsible for manufacturing the chipset.

The manufacturer was already the supplier for AMD in the 300 and 400 chipset series generations, only the X570 was the exception.

ASMedia is relying heavily on the increasing deliveries of the chipsets; in the last three months, sales grew by 50 to 115 percent compared to the previous year.

The new chips should have their corresponding share in this.

Cheaper boards for fast RAM, OC – and without fans

All major motherboard manufacturers will offer many B550 boards.

As usual, the keywords are good power supply, overclocking capacity and various connectors.

But also the customers were heard:

The chipset fan didn’t go down well with the X570, although it almost never causes problems in use.

Active cooling is not the rule with B550, passive cooling is standard here again.

The B550 chipset also supports fast memory for the AMD Ryzen.

First board manufacturers advertise the boards with DDR4-5200+ – upper limits are only determined by the memory modules.

Best B550 Motherboard

Fully equipped, if paid

One year ago still unthinkable, there are now many more AMD boards, which not only rely on various LAN and WLAN chips from Intel, but are also allowed to use the Thunderbolt 3, which has been used almost exclusively so far.

The first board partners are already installing the Titan Ridge controller for the launch of B550 and are promoting it as the single most advanced port for the B550 Vision D.

Together with further novelties, which became mass marketable in the last year, many B550 boards are preparing to be the best equipped mainboards for relatively small money.

But not cheap at the beginning

But this equipment sometimes has its price.

Most B550 mainboards will be available at the start in the range of 150 to 200 Dollar.

Some representatives are supposed to cost around 100 Dollar or less soon, but the flagship solutions will be far more expensive.

The variety will be much greater than when the X570 was launched a year ago.

AMD expects more than 60 designs of B550 from AMD, but not all of them are offered in every country.

The top 4 manufacturers alone will together already provide almost 50 solutions.

Test Results: Best B550 Motherboards for Ryzen 3000XT CPUs

Ranking First: ASUS ROG Strix B550-E

ASUS ROG Strix B550-E

Pros

  • Very good performance with a good CPU power supply
  • Six SATA 6GBit/s interfaces and four USB 3.1 Gen2 sockets
  • PCIe 4.0 support on two PEG slots
  • WLAN-ax and Bluetooth 5.0

Cons

  • BIOS operation with the mouse very slow

Best B550 Motherboard

With the X570 mainboards and the Ryzen 3000 processors (Matisse) AMD heralded the start of the introduction of the PCIe 4.0 standard into the consumer sector.

Almost a year later, the mainstream chip B550-PCH follows, which is an ideal partner for the less expensive Ryzen processors.

The first B550 mainboard in the test is ASUS’ ROG Strix B550-E Gaming.

For the B550 mainboards, PCI Express version 4.0 is provided exclusively via the AM4 socket from the Ryzen 3000 processors upwards.

In this way, a maximum of two graphics cards and also a PCIe 4.0 NVMe SSD can be connected directly via the CPU.

Compared to the X570-PCH, the B550 chipset itself does not offer PCIe 4.0 lanes, but has been upgraded to eight PCIe 3.0 lanes.

With ASUS, the mainstream chipsets go up to the ROG-Strix series, so there will of course be no ROG crosshair models with the B550-PCH.

These are reserved for enthusiast chipsets (e.g. X570) within AMD’s mainstream platform.

In this case we have the ASUS ROG Strix B550-E Gaming, the flagship in the editorial office and are curious what the board has to offer.

Who would have thought it:

The PCB of the ASUS ROG Strix B550-E Gaming is of course black and this also applies to the connectors and heat sink.

The magenta-colored accents are of course a matter of taste, but in our opinion it should have been red.

The ASUS ROG Strix B550-E Gaming corresponds to the ATX format in terms of dimensions.

Besides the board itself, ASUS also supplies important accessories, like the mainboard manual and of course the support data carrier.

But beyond that we could also find four SATA cables, a freely positionable WLAN antenna, various ROG stickers and of course two M.2 screws and threads in the box.

For the RGB LED lighting, the ROG Strix B550-E Gaming also comes with a 4-pin and 3-pin extension cable.

In addition to seven cable ties, a ROG keychain and a ROG thank you card, we also found a USB type C to 3.5mm jack adapter cable.

Feature and layout (1)

With the B550-PCH AMD offers the price-conscious upgrade-willing the possibility to build up a current and performant system, which now also partly includes PCIe in version 4.0 and is therefore no longer reserved for X570 mainboards.

Basically the B450 and B550 chipset differ only from the PCIe generation and the number of lanes.

While the B450-PCH had only six PCIe 2.0 lanes, the B550 chip now has eight PCIe 3.0 lanes.

AMD’s X570 chipset also offers only eight lanes, but in this case in the PCIe 4.0 version.

ASUS ROG Strix B550-E

From that it remains with two USB 3.2 Gen2 (10 GBit/s) and USB 3.2 Gen1 (5 GBit/s) and six SATA 6 GBit/s ports.

The connection between CPU and chipset is made via PCIe 3.0 x4 (32 GBit/s).

For comparison: With an X570 mainboard, the connection runs via PCIe 4.0 x4 (64 GBit/s).

The only source of the PCIe 4.0 specification comes on a B550 mainboard from the installed processor, whereby it must be at least a CPU model from the 3000 series (Matisse).

The 16 PCIe 4.0 lanes are routed to one PEG slot (x16) or divided into two PEG slots (x16, x8/x8), depending on the mainboard.

The remaining four PCIe 4.0 lanes are usually routed to an M.2 M key slot.

ASUS does without a heatpipe for the two VRM coolers and relies on standalone coolers.

Both the power stages and the voltage converters are cooled.

It is noticeable that the voltage converters are not completely covered by the heat pipe.

The PCH cooler offers a sufficient size and does not need to be actively cooled due to the lack of PCIe 4.0 support.

The VRM section looks very extensive and consists of a total of 16 power stages, of which 14 are for the VCore and two for the CPU SoC.

Each coil is driven by a DrMOS voltage converter marked “MPS2010”.

Unfortunately, it is not known how many amperes this voltage converter can deliver at maximum.

ASUS still uses re-labelled models as PWM controllers, but the ASP2005 used in this case is an unknown.

However, we assume that the ASP2005 can control a maximum of eight coils. If this is the case, ASUS has set up the 16 coils in teams of two.

According to this, it would be an actual 7+1 and an effective 14+2 phase design. The general power input is an 8-pin and 4-pin power connector.

Up to 128 GB of RAM can be distributed on the ASUS ROG Strix B550-E Gaming to four DDR4 UDIMM memory banks.

According to ASUS, ECC is also supported.

The maximum memory clock stated by ASUS is 4,400 MHz effectively.

The installed RAM is fired by a coil, which receives its current input from four SiRA14DP voltage converters (max. 58A), which come from Vishay.

At the bottom edge, directly below the memory slots, we see not only the 24-pin power socket, but also a USB 3.2 Gen2 header, a USB 3.2 Gen1 header and four status LEDs.

Without question, some expansion cards can also be accommodated on the ASUS ROG Strix B550-E Gaming.

ASUS has considered two mechanical PCIe-4.0-x16 slots via the processor as well as two PCIe-3.0-x1 slots and one mechanical PCIe-3.0-x16 slot via the B550 chipset.

Consequently, one slot below the upper PCIe-3.0-x16 slot has been left free, so that no slot becomes unusable when using a dual-slot graphics card.

ASUS ROG Strix B550-E

At the top there is an M.2-M key interface and another one in the lower right corner.

The upper interface works with a maximum PCIe 4.0 x4 directly with the AM4 processor, the lower interface works with the B550 chipset.

ASUS also supplies two M.2 coolers for this.

However, there is also a restriction to be considered, because the SATA ports 5 and 6 are deactivated as soon as a module is installed in the lower M.2 slot.

Another restriction is the split connection of the two PCIe-3.0-x1 slots.

You won’t find extensive onboard comfort in the ASUS ROG Strix B550-E Gaming.

Only a debug LED, a CMOS clear jumper and the already mentioned four status LEDs are on board.

All six SATA 6GBit/s sockets were angled at 90 degrees and operate directly over the B550 chipset.

Without resorting to additional chips, ASUS could poorly provide an abundant number of faster USB interfaces.

So there are now four USB 2.0 and three USB 3.2 Gen2, of which one is the type C version.

The latter are driven by the AM4 processor, so it must also be at least a Ryzen 3000 model in order for the three ports to be addressed with the USB 3.2 Gen2 specification.

Also on the I/O panel are a DisplayPort 1.2 and HDMI graphics output, whereby ASUS refers to the latter as the current HDMI 2.1 version.

The LAN port is addressed by the Intel I225-V controller and can shift data up to 2.5 GBit/s.

Alternatively, a WLAN-AX module (Intel Wi-Fi 6 AX200) is also included, which can reach up to 2.4 GBit/s under optimal conditions.

In addition, there are generally also five 3.5 mm jack sockets and no TOSlink connection, but a USB type C audio connector, which has been familiarised with the USB 2.0 specification and also makes contact with the B550 chipset.

A USB type C to 3.5 mm jack adapter is included with the accessories.

The BIOS flashback button remains, with which the BIOS can be flashed even without an installed processor.

To the right of the SuperI/O controller, the audio section has been moved to the corner.

Under the EMI shield is Realtek’s ALC1220 codec, which is accompanied by a total of ten audio capacitors and a headphone amplifier.

If we look at the ASUS ROG Strix B550-E Gaming as a whole, we notice that certain extras are missing.

At least a power and reset button would have been really good for the board.

For fans and a water pump, two CPU fan headers, three case fan headers and an AIO pump header are provided.

BIOS

Directly after the first start of the system we were welcomed with the BIOS version 0254, but we were already supplied in advance by ASUS with the more current BIOS version 0603, which includes AMDs AGESA PI 1.0.0.1, whereby there is also already version 1.0.0.2.

BIOS and Overclocking

Directly after the first start of the system we were welcomed with the BIOS version 0254, but we were already supplied in advance by ASUS with the more current BIOS version 0603, which includes AMDs AGESA PI 1.0.0.1, whereby there is also already version 1.0.0.2.

ASUS ROG Strix B550-E

In general the UEFI look has been kept.

The individual points are highlighted in yellow and the remaining values in white.

Starting in the upper left corner, the current date and time can be seen.

On the right side you can also change the general UEFI language.

The next line displays the usual preliminary information such as the mainboard model incl.

BIOS version, the currently installed CPU incl. clock frequency and the RAM capacity.

Further to the right, the CPU and mainboard temperature are also shown, as well as the CPU voltage.

One floor below, an additional RAM status on the left side shows in which slots currently installed modules with which capacity and the currently applied clock rate are located.

In addition, an Extreme Memory Profile (D.O.C.P.) can be selected if available.

If you are interested in the currently connected storage devices, this information is available directly to the right.

In addition, the fan speeds are also shown below, which can be individually set with the “Manual Fan Tuning” function.

On the right-hand side of the screen, the user can select the basic functional scheme.

The normal mode is activated by default.

However, “ASUS Optimal” and the “Power Saving” mode can also be activated.

While the “ASUS Optimal” mode is designed for increased performance, the “Power Saving” mode allows for more efficient setup.

Underneath, the boot order can be changed with ease.

Either by clicking on “Advanced Mode” or by pressing “F7” we get to the advanced view, which we will now look at.

Advanced-Mode: Optically exactly like the EZ-Mode, but structured in the traditional way.

The first menu item is the “My Favorites” feature, which shows the selection of frequently used functions from the BIOS, which the user can freely choose.

To add or remove functions, click on the “MyFavorite(F3)” item at the top or press the “F3” key.

This opens a separate window in which the functions can be selected.

On the “Main” page, some preliminary information such as the BIOS version, the installed processor model and some RAM information is displayed again.

The menu language can also be changed here if desired.

All overclocking functions are stored in the Ai-Tweaker tab, and once again a lot of functions have been implemented.

Whether it is the clock frequency of CPU or RAM or the individual voltages, the user will find what he is looking for.

To support you, what the individual functions do is explained below.

As always, the numerous onboard components can be configured using the next tab.

Even though the hardware monitor constantly displays some information on the right-hand side, ASUS has implemented a dedicated “Monitor” page where, among other things, the fans can be controlled.

But also the temperatures and voltages are listed again.

ASUS ROG Strix B550-E

All settings concerning the boot process have been parked on the “Boot” tab.

Whoever feels disturbed by the boot logo can switch it off there.

In addition, the boot overrides have been placed here, which can often be found on the last page.

ASUS again provides some tools for this purpose.

One of them is the “ASUS EZ Flash 3 Utility”, with which the UEFI can be updated either via a USB data carrier or via the Internet.

All UEFI settings can be saved in a maximum of eight profiles using the “ASUS Overclocking Profile”, which can also be exported and imported from a USB stick.

“ASUS SPD Information” reads the Serial Presence Detect values from the DIMMs.

And under “Exit” the set settings can be saved and also the default values can be loaded.

Before the UEFI saves the settings, a small window shows all settings that have been changed.

If you want to create useful notes, you don’t have to resort to a pen and paper, but simply use the “Quick Note” feature.

We rate the usability of the UEFI interface with the keyboard as excellent and with the mouse as acceptable.

The cursor movements were somewhat sluggish to say the least.

There’s another point to be added: navigation through the menus can be carried out in a mostly jerky way after long UEFI use, which we’ve had to criticize quite often.

Apart from this fact, all selected settings were adopted to our complete satisfaction.

There was also nothing to criticize in terms of stability.

Overclocking

With a remarkable 16 CPU and one RAM coil and the numerous onboard and BIOS features, the ASUS ROG Strix B550-E Gaming is well prepared for overclocking.

The UEFI also supports the down-core function, with which CPU cores or even a CCX module (CPU Core Complex) can be selectively disabled if desired.

On the ASUS ROG Strix B550-E Gaming, the base clock can be changed from 96 MHz to 118 MHz in 1 MHz steps.

For the CPU voltage the user can choose between override and offset mode.

In override mode, the voltage can be changed from 0.75000 Volt to 2.00000 Volt in 0.00625 Volt intervals.

The offset mode, on the other hand, allows the CPU voltage to be changed from -0.50000 Volt to +0.50000 Volt in 0.00625 Volt increments.

We have used the ASUS ROG Strix B550-E Gaming exclusively with the Ryzen 5 3600X, as we will do with the other B550 mainboards.

The ASUS board was able to run the Ryzen 5 3600X stably at 4.3 GHz on all six cores, requiring a 1.325 V VCore in the BIOS.

The voltage indication from CPU-Z was not reliable at any time, so we checked the VCore with HWInfo64.

A surprise was the just too low VRM cooler temperatures of less than 50 °C.

For the RAM-OC test we used the 16 GB Patriot Viper Gaming DDR4-4133 kit.

Without manual intervention, the ASUS ROG Strix B550-E Gaming was not able to operate the DIMMs with activated XMP or D.O.C.P..

Only when we increased the VDIMM was a successful boot process possible.

In manual mode, however, we didn’t get beyond the effective 4.133 MHz, we were able to activate CL18, but we had to go up a bit in the subtimings.

Power consumption

ASUS ROG Strix B550-E

In addition to the important performance, the power consumption of the home PC is not an unimportant criterion.

What is often underestimated is the fact that even the various mainboard models from the numerous manufacturers draw different amounts of power from the socket.

One reason for this is the different BIOS versions used, which sometimes implement the referenced power saving mechanisms poorly or even incorrectly, or that onboard components should actually deactivate themselves when they have either been replaced by dedicated hardware or simply not used.

In addition, the power supply can sometimes be blamed if more power is provided under Default Settings than is actually needed.

This is exactly why efficiency plays an important role.

So if the efficiency of the power supply is poor, more power is consumed.

But the software should not be underestimated either, so it must also be well tuned for satisfactory efficiency.

The ASUS ROG Strix B550-E Gaming has received a few additional controllers.

A LAN controller and an audio codec contribute their share to the power consumption.

Finally, there is also a WLAN and Bluetooth module.

We measured in Windows idle mode without load, with Cinebench 15 under 2D full load and with Prime95 (Torture-span test, full load).

The respective performance values correspond to the system’s total consumption.

Test 1: With activated onboard components:

For the first test the default settings are active, so that the majority of the onboard components are already activated.

The graphics output is done via the Radeon R9 380.

As already written above, all power saving features are enabled, which was apparently well implemented with the values of a manual configuration.

Despite the other CPU, the ASUS ROG Strix B550-E Gaming doesn’t belong to the most efficient motherboards, but it is still well within the limits with exactly 55 W in idle including the rest of the system.

Under partial load with Cinebench R15, we measured just over 135 W.

The big difference is the Ryzen 5 3600X, which has two cores less in comparison to the Ryzen 7 2700X.

But even compared to the ASRock X570 Aqua, the difference is almost 11 W.

Of course, a difference was also evident with Prime95.

We measured 140.4 W with the ASUS ROG Strix B550-E Gaming and are thus 4.1 W ahead of the ASRock X570 Aqua.

The ASRock X570 Aqua relies on a default V core of 1.370 V in the Ryzen 5 3600X, the ASUS B550 mainboard can only slightly trump this.

Since most users don’t need all the onboard chips, we conducted a test with only one activated onboard LAN and the onboard sound.

If possible, existing additional chips are deactivated here.

The voltages are still set automatically by the board, but all energy-saving features are additionally activated manually. The Radeon R9 380 is still the primary graphics card.

Test 2: With onboard components disabled (1x LAN + sound on):

In the UEFI we were able to deactivate not only the RGB LED lighting, but also the WLAN and Bluetooth module. Thereby, we could save 1.8 W in idle.

In the second Cinebench R15 run, more 133.1 W were now displayed, which corresponds to a difference of 2.1 W.

We could make out the largest difference with Prime95. Namely a whole 2.6 W.

As expected, nothing has changed on the VCore. It remained unchanged at 1.362 V.

In total, the ASUS ROG Strix B550-E Gaming presents itself in positive territory in terms of power consumption. This applies both in idle and under load.

USB 3.2 Gen2 performance

ASUS ROG Strix B550-E

The ASUS ROG Strix B550-E Gaming provides a total of three USB 3.2 Gen2 interfaces with a Ryzen 3000 CPU.

All three are located on the I/O panel and connection is made possible via an onboard header, but connected via the B550 chipset.

In conjunction with a second generation Ryzen processor, the three ports on the I/O panel work with the USB 3.2 Gen1 specification.

For the test, we use the external NVMe SSD WD_Black P50 with 2 TB capacity from Western Digital, which supports the USB 3.2 Gen2x2 standard (20 GBit/s) and is therefore more than suitable for testing the USB interfaces

USB 3.2 Gen2 performance

The ASUS ROG Strix B550-E Gaming provides a total of three USB 3.2 Gen2 interfaces with a Ryzen 3000 CPU.

All three are located on the I/O panel and connection is made possible via an onboard header, but connected via the B550 chipset.

In conjunction with a second generation Ryzen processor, the three ports on the I/O panel work with the USB 3.2 Gen1 specification.

For the test, we use the external NVMe SSD WD_Black P50 with 2 TB capacity from Western Digital, which supports the USB 3.2 Gen2x2 standard (20 GBit/s) and is therefore more than suitable for testing the USB interfaces

The USB 3.2 Gen2 values are impressive.

Achieved in reading and writing were 1,037 MB/s and 966 MB/s respectively.

USB 3.2 Gen1 performance

The ASUS ROG Strix B550-E Gaming offers only two USB 3.2 Gen1 sockets and works natively with the B550-PCH.

The two ports are provided internally via the header.

For the USB 3.2 Gen1 performance test we also used the above mentioned USB 3.2 Gen2 solution.

And the B550 chipset also does a good job here, pushing the data at up to 468 MB/s in read and 465 MB/s in write.

SATA 6GBit/s performance

The ASUS ROG Strix B550-E Gaming provides six SATA 6GBit/s jacks.

All six SATA connectors work natively with the B550 chipset.

For the test we use the SanDisk Extreme 120, which we of course connect directly to the SATA ports.

For the SATA test, we reverted to the good old ATTO disk benchmark, since it scales better, at least with our drive.

Although no best values were achieved, the values were satisfactory with a read rate up to 530 MB/s and write performance up to 504 MB/s.

M.2 performance

ASUS ROG Strix B550-E

The ASUS ROG Strix B550-E Gaming features two M.2-M key interfaces with PCIe-4.0-x4 connectivity via the Ryzen 3000 CPU and PCIe-3.0-x4 interface via the chipset.

With a Ryzen 2000 CPU, the upper M.2 connector also operates with the PCIe-3.0-x4 specification.

For the M.2 test, we use the Corsair MP600 with 2 TB memory capacity, which comes to a length of 8 cm and was specified by Corsair with 4,950 MB/s read and 4,250 MB/s write.

The protocol used by the Solid State Module is NVMe version 1.3 and uses four Gen4 lanes from the chipset and processor and four Gen3 lanes from the PCH.

While Corsair’s MP600 SSD was easy to handle with the M.2 connection via the chipset and achieved values of over 3.1 GB/s in each case, the controller had to make a little more effort with the M.2 slot via the processor (Ryzen 5 3600X), but delivered the manufacturer’s specifications with 5 GB/s read and 4.26 GB/s write.

Verdict: Best B550 Motherboard

ASUS’ Republic of Gamers mainboards don’t stop at AMD’s B550 mainstream chipset, even if only a few ROG-Strix models have to suffice.

Of the portfolio, the ROG Strix B550-E Gaming as the flagship model had to show what it can do in our editorial office.

The B550 model looks less impressive than the ROG Strix X570-E Gaming, which we also tested.

But you have to consider that it’s the mainstream chipset and is therefore also positioned a good bit below it in terms of price.

Apart from that, AMD’s B550 chipset and thus also the ASUS ROG Strix B550-E Gaming finally brings the PCIe 4.0 standard into more favorable realms, but is limited to the PCIe 4.0 lanes from the AM4 processor from Matisse (Ryzen 3000) on, because the B550-PCH itself has only received an upgrade from PCIe 2.0 (B450) to PCIe 3.0 and now offers eight instead of six lanes.

A corresponding processor is therefore a prerequisite for PCIe 4.0.

ASUS ROG Strix B550-E

With the ASUS motherboard, the processor divides the 16 lanes between the two upper mechanical PCIe x16 slots in x16/x0 or x8/x8 mode.

The remaining four lanes are moved to the upper M.2 connector, so that a more modern PCIe 4.0 x4 NVMe SSD can be used with a Ryzen 3000 processor or higher.

Another NVMe SSD can be connected via the chipset with a maximum PCIe 3.0 x4.

In addition, there are six native SATA 6Gbps ports, but two of them become unusable if the lower M.2 port is occupied.

For the most part, the rest remains the same.

The four DDR4 DIMM memory banks take up to 128 GB RAM with a maximum of 4,400 MHz.

With a total of 15 USB interfaces the number is generous, but only four of them work with the second and only two with the first USB 3.2 generation.

This leaves a total of nine USB 2.0 ports.

If an APU is selected, two graphics outputs can also be used, one for DisplayPort 1.2 and one for HDMI in revision 2.1.

The network packages can be transported either via the 2.5 Gbps LAN port (Intel I225-V) or via the WLAN AX and Bluetooth 5.1 module (Intel Wi-Fi 6 AX200).

ASUS has installed a convincing onboard sound solution with the Realtek ALC1220 codec, ten audio capacitors and a headphone amplifier.

More recently, ASUS has replaced the TOSLink connector with the USB 2.0 type C audio port, to which various adapters can be connected.

In our opinion, the BIOS, which is rather slow to operate with the mouse, needs some optimization.

But ASUS can certainly improve this with upcoming BIOS updates.

We liked the energy efficiency, though. As usual, even the Strix flagship only offers little onboard comfort.

A debug LED, four status LEDs, a CMOS clear jumper and a BIOS flashback button made it onto the board.

ASUS gives a RRP of 260 Euro for the ASUS ROG Strix B550-E Gaming, which is already not without.

However, the street price will surely slide down a bit at a later date.

But in general it’s nice that PCIe 4.0 is now generally available for a lower purchase price in relation to the B550 mainboards.

Ranking Second: ASRock B550M Steel Legend

ASRock B550M Steel Legend

Pros

  • DisplayPort Connectivity for APUs
  • SATA M.2 and Ultra M.2 sockets
  • Build Quality
  • Best price-performance ratio

Cons

  • Overclocking stability

Best price-performance ratio in Best B550 Motherboards

The three micro ATX boards are the B550M Steel Legend model, which – except for the HDV – does not differ significantly from its ATX counterparts in terms of equipment level.

The B550M Steel Legend ranks in the middle class, the lower middle class serves the B550M Pro4 with a reduced equipment package.

ASRock B550M Steel Legend

Despite its compact dimensions, the Steel Legend uses a 10-phase design for voltage regulation.

Just like its larger counterpart with 60 A mosfets.

A 2.5 Gbit LAN is provided as a network connection and in addition to a fast USB type C connection with 10 Gbit/s (USB 3.2 Gen 2), several type A sockets are installed on the I/O panel.

ASRock B550M Steel Legend

The B550M Steel Legend from ASRock is designed comparatively conservatively.

The basic features common for B550 boards, such as four slots for main memory and one x16 and M.2 slot each connected via PCIe 4.0, are available on the Micro-ATX model for less demanding users.

Verdict: Best price-performance ratio in Best B550 Motherboards

The first SSD slot also has a cooling plate. Six SATA ports are available for additional storage media.

Apart from the two usual outputs of the DisplayPort and HDMI type, an older DSub port is built into the connection panel of the B550M Steel Legend.

For peripherals there are seven type A ports beside a USB type C socket.

Ranking Third: ASRock B550 Phantom Gaming 4

ASRock B550 Phantom Gaming 4

Pros

  • Affordable price point
  • Onboard diagnostic LEDs
  • Ample RGB capability and expansion
  • Sufficient performance available

Cons

  • Performance not as good as more expensive models

Cheapest Motherboard in Best B550 Motherboards

For especially compact PC systems ASRock has released the AM4 mainboard B550 Phantom Gaming-ITX/ax in Mini-ITX form factor with AMDs B550 chipset.

The equipment list is – measured at the small board (170 × 170 mm) – appealing.

The CPU draws power via an 8-phase design, which is supplied from the power supply via 24-PIN and another 8-PIN connector.

Up to 64 GB DDR4 RAM can be installed in two RAM slots.

According to the data sheet, up to 4,733 MHz is officially supported.

The PCIe-x16 slot and the first M.2 slot share the fast data lines according to version 4.0, as usual on B550 mainboards.

The second SSD slot is connected via the chipset with four PCIe-3.0 lanes.

The B550 Phantom Gaming-ITX/ax is equipped with a 2.5 Gbit LAN chip from Intel (i225V) and a Wi-Fi 6 module, which is rather rare on B550 mainboards.

Apart from the RJ45 port and the two antenna sockets with DisplayPort (1.4) and HDMI (2.1) as video outputs as well as a type C socket connected via USB 3.2 Gen2, four classic type A plugs are also built into the connection panel.

In addition, the PCB of the B550 Phantom Gaming-ITX/ax has a type C connector, not unusual for ASRock boards, which can be used for the front connection of a case.

Realtek’s currently best chip, the ALC1220, is used as audio solution.

Final Verdict: Best B550 Motherboards for Ryzen 3000XT CPUs

All in all, we can recommend all the B550 motherboards tested here as the best B550 Motherboards for the Ryzen 3000 series.

However, some B550 motherboards are better suited for different use cases.

If you want the best performance without any issues, you should go for the ASUS ROG Strix B550-E Gaming.

It offers the best performance at a fair price and has Wifi and BT 5.0 onboard.

If you are more conscious about price-performance ratio you should go with the ASRock B550M Steel Legend.

It gives you the best performance for the money you have to spend. It also offers an expansion option for Wifi & BT 5.0.

If you are really budget conscious we recommend the ASRock B550 Phantom Gaming 4.

It is the cheapest mainboard with the B550 chipset taht we tested, but scored very good & is very well suited for entry-level users.

We keep this list updated so you can always choose from the newest best B550 motherboards.


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