Power, Temperature, and Noise

As always, we'll take a look at power, temperature, and noise of the Radeon VII. While it is customary to look at voltages and clockspeeds, given the SMU changes that was not possible this first time around.

Idle Power Consumption

Load Power Consumption - Battlefield 1

Load Power Consumption - FurMark

Idle GPU Temperature

Load GPU Temperature - Battlefield 1

Load GPU Temperature - FurMark

The noise levels of the card look surprising at first blush. Ultimately, what's happening here is the consequence of a very aggressive fan curve, one that invests all potential acoustic improvements of an open-air triple fan card for cooling capability. Going this route makes the fan noise comparable to RX Vega 64's blower.

Idle Noise Levels

Load Noise Levels - Battlefield 1

Load Noise Levels - FurMark

Radeon VII and RX Vega 64 Clock-for-Clock Final Words
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  • i4mt3hwin - Thursday, February 07, 2019 - link

    So FP64 is 1:4 and not 1:8 or 1:2 as previously known? Reply
  • tipoo - Thursday, February 07, 2019 - link

    Yep, looks like they changed the cap in vBIOS based on feedback.

    Which also means they could have uncapped it, but it's still cool that they did that.
    Reply
  • Ganimoth - Thursday, February 07, 2019 - link

    Does that mean it could be potentially unlocked by some bios mod? Reply
  • tipoo - Friday, February 08, 2019 - link

    I hope so! Reply
  • Hul8 - Thursday, February 07, 2019 - link

    I don't think it was ever reported or assumed to be 1/2 - that best possible ratio is only for the pro MI50 part. Early reports said 1/16. Reply
  • Ryan Smith - Thursday, February 07, 2019 - link

    For what it's worth, when we first asked AMD about it back at CES, FP64 performance wasn't among the features they were even throttling/holding back on. So for a time, 1/2 was on the table. Reply
  • GreenReaper - Thursday, February 07, 2019 - link

    So it was *your* fault! ;-p Reply
  • BigMamaInHouse - Thursday, February 07, 2019 - link

    Asrock just posted vBios: is this with the FP 1:4 or newer?
    https://www.asrock.com/Graphics-Card/AMD/Phantom%2...
    Reply
  • Ryan Smith - Thursday, February 07, 2019 - link

    We're not currently aware of any Radeon VII cards shipping with anything other than 1/4 rate FP64. Reply
  • BigMamaInHouse - Friday, February 08, 2019 - link

    So maybe it's new bios with some fixes?
    Did you tried it since all cards are the same reference design?
    Reply

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