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 manufacturing process and prowess, so these are tested.

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 test bed 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.

Power Long Idle (w/GTX 980)Power OS Idle (w/GTX 980)Power OCCT (w/GTX 980)

The ASRock X470 Taichi Ultimate on the whole uses less power at load than the X470 Gaming 7 Wi-Fi, but at idle states, consumes the most power out of all the AM4 boards tested with our Ryzen 7 1700 processor. Perhaps a consequence of having so many additional controllers and including 10G Ethernet, although not much variance and nothing too much to worry about given that this model is targeted at enthusiasts.

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.)

Non UEFI POST Time

The Taichi Ultimate does POST quite fast, beats all but the X370 Gaming-ITX/ac from their X370 range, and the previously reviewed X470 Gaming 7 Wi-Fi from GIGABYTE. Disabling the onboard controllers displayed a very negatable 0.3s variance in POST time.

Rightmark Audio Analyzer 6.2.5

Rightmark:AA indicates how well the sound system is built and isolated from electrical interference (either internally or externally). For this test we connect the Line Out to the Line In using a short six inch 3.5mm to 3.5mm high-quality jack, turn the OS speaker volume to 100%, and run the Rightmark default test suite at 192 kHz, 24-bit. The OS is tuned to 192 kHz/24-bit input and output, and the Line-In volume is adjusted until we have the best RMAA value in the mini-pretest. We look specifically at the Dynamic Range of the audio codec used on the rear panel of the board.

Rightmark Audio Analyzer 6.2.5: Dynamic Range

The X470 Taichi Ultimate performs consistent with other boards featuring a Realtek ALC1220 audio codec in our RMAA 6.2.5 Dynamic Range testing. Even though the board features no element of isolation shileding on the codec or any visible audio PCB seperation, it shows good and able results.

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.

Deferred Procedure Call Latency

While none of the manufacturers of the boards tested on the AM4 socket so far have been optimized for DPC latency, the X470 Taichi Ultimate does pretty well considering and in comparison to others on test, it sits middle of the road.

Board Features, Test Bed and Setup CPU Performance, Short Form
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  • asmian - Thursday, August 2, 2018 - link

    compliment vs. complement (on the important first page) again... so no, not a typo. This sort of homonym misunderstanding shouldn't appear in a professional technical article. Reply
  • hansmuff - Thursday, August 2, 2018 - link

    " The consensus is ASRock has gone as all-out as they can with a board listed at $300 "

    The writing style is very bad for a professional article. Anandtech has a number of writers who really should get some training on writing.
    Reply
  • pixelstuff - Thursday, August 2, 2018 - link

    Editors are supposed to be the expert on the rules of writing so the topic writer doesn't have to be. Reply
  • Reflex - Sunday, August 5, 2018 - link

    You should apply for a refund. Reply
  • Questor - Thursday, August 2, 2018 - link

    If we are criticizing grammar, try capital letters at the beginning of your sentence. It's a "falls on deaf ears" thing when you fail while attempting to correct someone else. Just a thought. Reply
  • CheapSushi - Friday, August 3, 2018 - link

    I wish we could downvote comments. It's absolutely trash that this is the first comment that shows up. Reply
  • LJM - Thursday, August 2, 2018 - link

    What sense does 64GB max RAM make on a flagship motherboard for a CPU with 32 cores and 64 threads? I would pair the 2990x with 128GB RAM so this motherboard is immediately disqualified no matter what other properties it may have Reply
  • Blargh99 - Thursday, August 2, 2018 - link

    This is AM4 not TR4. So I'm interested to see how you get the 2990X to work here. Reply
  • LJM - Thursday, August 2, 2018 - link

    Thanks. My mistake. Reply
  • 4everalone - Thursday, August 2, 2018 - link

    This is a Ryzen AM4 board, not a TR4 Threadripper board. I believe you may be confusing the two. Reply

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