The ASUS ROG Strix B550-F Gaming Wi-Fi Motherboard Review: Premium Value
by Gavin Bonshor on July 22, 2020 9:00 AM EST- Posted in
- Motherboards
- AMD
- Asus
- ROG
- AM4
- Strix
- Ryzen 3000
- Ryzen 3700X
- B550
- B550-F
System Performance
Not all motherboards are created equal. On the face of it, they should all perform the same and differ only in the functionality they provide - however, this is not the case. The obvious pointers are power consumption, but also the ability for the manufacturer to optimize USB speed, audio quality (based on audio codec), POST time and latency. This can come down to the manufacturing process and prowess, so these are tested.
For B550, we are running using Windows 10 64-bit with the 1909 update.
Power Consumption
Power consumption was tested on the system while in a single ASUS GTX 980 GPU configuration with a wall meter connected to the Thermaltake 1200W power supply. This power supply has ~75% efficiency > 50W, and 90%+ efficiency at 250W, suitable for both idle and multi-GPU loading. This method of power reading allows us to compare the power management of the UEFI and the board to supply components with power under load, and includes typical PSU losses due to efficiency. These are the real-world values that consumers may expect from a typical system (minus the monitor) using this motherboard.
While this method for power measurement may not be ideal, and you feel these numbers are not representative due to the high wattage power supply being used (we use the same PSU to remain consistent over a series of reviews, and the fact that some boards on our testbed get tested with three or four high powered GPUs), the important point to take away is the relationship between the numbers. These boards are all under the same conditions, and thus the differences between them should be easy to spot.
The ASUS ROG Strix B550-F Gaming Wi-Fi performs very well in our power testing, with the best load performance of any AM4 board currently tested, as well as competitive findings in our long idle and idle testing.
Non-UEFI POST Time
Different motherboards have different POST sequences before an operating system is initialized. A lot of this is dependent on the board itself, and POST boot time is determined by the controllers on board (and the sequence of how those extras are organized). As part of our testing, we look at the POST Boot Time using a stopwatch. This is the time from pressing the ON button on the computer to when Windows starts loading. (We discount Windows loading as it is highly variable given Windows specific features.)
The ASUS model out performs the competition by over 7 seconds at default settings in our non-UEFI POST time test. With non-essential controllers disabled such as networking and audio, we managed to shave an additional 0.7-seconds off the POST time.
DPC Latency
Deferred Procedure Call latency is a way in which Windows handles interrupt servicing. In order to wait for a processor to acknowledge the request, the system will queue all interrupt requests by priority. Critical interrupts will be handled as soon as possible, whereas lesser priority requests such as audio will be further down the line. If the audio device requires data, it will have to wait until the request is processed before the buffer is filled.
If the device drivers of higher priority components in a system are poorly implemented, this can cause delays in request scheduling and process time. This can lead to an empty audio buffer and characteristic audible pauses, pops and clicks. The DPC latency checker measures how much time is taken processing DPCs from driver invocation. The lower the value will result in better audio transfer at smaller buffer sizes. Results are measured in microseconds.
We test DPC out of the box with default settings. The ASUS managed to score another major with some of the lowest DPC latency we've managed to record on an AM4 motherboard.
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Drweejah - Friday, April 16, 2021 - link
The Intel I225-V is trash. I had to add a nic to get internet.DZor - Wednesday, July 22, 2020 - link
In November I bought Gigabyte x570 Ultra and 3900X and now I plan to buy something for my son for gaming. I'm not happy with Gigabyte despite high grades. My biggest problem with Gigabyte is, as today usually, software. Better to say crappy software. For example every BIOS update deletes previous settings and usually I'm not able to load previous ones - every time remember what I did and set all manually! Oh my God! Not even Windows BIOS update is not clever enough to migrate BIOS settings. Their Windows software is one of biggest craps I ever seen in my life!!!How is situation with Asus and others?
BTW Gigabyte has a crappy software called Easy Tune. When I "overclocked" my CPU via this app my Windows refused to boot! Thanks God I have second installation and was able to delete exes to get Windows booting.
obiwancelery - Wednesday, July 22, 2020 - link
I've got bad news for you. I upgrade my BIOSs as soon as they're out. I have a Ryzen 5 2400G on a Asus TUF B450M-PLUS GAMING (great combination). I found it nifty I could store the settings so one day I flash my BIOS and then get my optimal settings. Black screen. As far as I can see, the settings are useless from one version of the BIOS to the other. Bummer. From what I can see, it's a new "trend". If anyone knows how to get this to work I'd love to know. I'm about to adjust the memory timings ... many, many settings to change. Upgrading the bios will suck.DZor - Thursday, July 23, 2020 - link
Thanks!You see that's reason why 20 years ago I switched from self-built PC to brand names like HP or Dell. I had many HPs, Dells and Lenovos with many BIOS updates and NEVER EVER entered BIOS after upgrade!
Avalon - Wednesday, July 22, 2020 - link
"The usual battleground for a good solid motherboard is in the $200 range" - No, it's not, and we need to stop perpetuating this. A good, solid motherboard needs to be in the $130-$150 range. If your board is coming with RGB lightning, has 16+ phases for power delivery, and looks like one of the Transformers, you've gone beyond "good".PeterCollier - Wednesday, July 22, 2020 - link
You forgot the "military grade" capsReflex - Wednesday, July 22, 2020 - link
I mean, 10-15 years ago that was the range of good solid motherboards. But inflation, reduced volume/slower upgrade cycle and higher base requirements (for signaling, power delivery, etc) would be expected to drive prices up. What we see now is essentially the same as what we saw before once factoring in inflation and market conditions.RGB lighting and additional power delivery phases are like dimes in the cost. And most of the R&D is shared with higher end boards. I think it just costs more to make a board now.
Oxford Guy - Saturday, August 1, 2020 - link
Inflation plus AMD wants to improve its margins. And, now that AMD is offering better CPUs than Intel, motherboard makers want more margin on AMD boards.Plus, Zen/AM4 has more demanding board specs than AM3+, in terms of things like voltage precision.
Board makers will try to push prices higher. It's up to consumers to push back.
CardiWAP - Tuesday, August 11, 2020 - link
Yes please pair your 10700K or 3900X with these boards and see how they fare. I hear Asrock really nailed the $130-$150 range on Z490.Reflex - Wednesday, July 22, 2020 - link
Not sure if this would help anyone, but the Asus and ASRock boards can actually get their WiFi upgraded. I realized that because I have a ROG Strix B350-I and the integrated Realtek WiFi/BT solution is garbage.It seems the 'integrated' solution is actually a vertically mounted M.2 card. If you take the shield off (two screws on the underside of the board) you can pull that card out and put in an AX200 (not the 201, that is specific to Intel chipsets).
I did the upgrade and it worked perfectly. BT is now reliable and WiFi is faster.
Not sure if that would help anyone.