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AMD RX 6900 XT reporting only 253W power usage

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Jun 6, 2020
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G'day all.

I've been lucky enough to snag a reference 6900 XT (Asrock Reference ASRock > Radeon RX 6900 XT 16G). I wanted a reference as i intend to put an EKWB on it.

First thing i do is open up Time Spy and i notice that the GPU is only using 253W of power at maximum. This is reported in Afterburner, GPU-Z and AMD's control center. 20~% lower than the stated 300W TPD on AMD's website. Asrock don't list a TDP on their website, just a recommended 850W PSU. I also get the same power reporting when running other benchmarks, like Unigine Superposition and FFXIV: Shadow Bringers game benchmark.

At first i thought it might be a driver issue, as a had a 3060 ti installed prior to this. I'd manually uninstalled the software through Programs and Features. I decided to use DDU and reinstalled the AMD drivers using its builtin clean install option. This didn't resolve the power reporting numbers.

If i manually increase the power limit in the AMD control panel by 15%, the reported power usage increase by 15%, to about 292W. This is a far cry from the 345W it should be reporting.

I've tried comparing my scores on 3dmarks website, but results seem to be all over the place for the GPU scores, so it's hard to get a handle on where I'm falling. I don't believe it's a PSU issue, which is a Seasonic SS-860XP2 860W Platinum PSU.

I don't check forums often these days, due to time constraints, but has there been any reports of errors in power reporting on the 6900 series?
 
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From what i heard which was though one of jayztwocents vids that is what the default is, pretty sure it was in one of his video's he noted theis and you can always use the RS to change that.

EDIT: Here you go
 
I think that these softwares report the GPU (cores+soc+other stuff) power only but not the VRAM.
Give a try with HWiNFO64 sensors mode.

My GPU card is 225W rated
Whats in the red box, both matching the AMD drivers value. But you have to add the yellow one to match the total rated value.

Unigine_Heaven_4.0_001_b.png

In my case is:
205W + 25W = 230W for max
196W + 23W = 219W for avg

I would assume that since 6800 series has double the VRAM amount to be around 45~50W for memory alone.
You can check it and confirm if this is true.
You can have AMD drivers open also to check if its the same with GPU PPT/Socket power.
Also in my screen shot, 13 lines further down from GPU PPT, there is a PPT limit in % marked light blue.

PPT = Power Package Tracking
 
On AMD the reported number is GPU chip only power consumption, not whole card
 
When using HWinfo, even with the 15% increase in the radeon software, the power tops out at 290-300W with all the components.

This Is default
6900xt at default.png


This is with +15%
6900xt.png


@W1zzard: this is standard operating behaviour then?
 
G'day all.

I've been lucky enough to snag a reference 6900 XT (Asrock Reference ASRock > Radeon RX 6900 XT 16G). I wanted a reference as i intend to put an EKWB on it.

First thing i do is open up Time Spy and i notice that the GPU is only using 253W of power at maximum. This is reported in Afterburner, GPU-Z and AMD's control center. 20~% lower than the stated 300W TPD on AMD's website. Asrock don't list a TDP on their website, just a recommended 850W PSU. I also get the same power reporting when running other benchmarks, like Unigine Superposition and FFXIV: Shadow Bringers game benchmark.

At first i thought it might be a driver issue, as a had a 3060 ti installed prior to this. I'd manually uninstalled the software through Programs and Features. I decided to use DDU and reinstalled the AMD drivers using its builtin clean install option. This didn't resolve the power reporting numbers.

If i manually increase the power limit in the AMD control panel by 15%, the reported power usage increase by 15%, to about 292W. This is a far cry from the 345W it should be reporting.

I've tried comparing my scores on 3dmarks website, but results seem to be all over the place for the GPU scores, so it's hard to get a handle on where I'm falling. I don't believe it's a PSU issue, which is a Seasonic SS-860XP2 860W Platinum PSU.

I don't check forums often these days, due to time constraints, but has there been any reports of errors in power reporting on the 6900 series?
I'm having the same power consumption issue, but this is intermittent. My card with Power Limit + 15% should consume around 327W but sometimes it consumes 240~250W on Furmark. I have some BSODs too. Here's the video:
 
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