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rx 6000 high OC but low gains?

MustangSVT

Lifer
Oct 7, 2000
11,548
9
81
I am super interested on very high OC the rx6000 series are showing, but in the games its not showing much gains at all , can anyone have a theory on this?

Can this be improved once the drivers are updated?
 

IEC

Elite Member
Super Moderator
Jun 10, 2004
13,984
3,682
136
It does still make a difference. 6800 XT undervolted 255W power limit: ~2400MHz sustained clocks
Superposition_Benchmark_v1.0_14595_1611357921.png

6800 XT undervolted 310W+ power limit: ~2650MHz sustained clocks
Superposition_Benchmark_v1.0_15186_1611359507.png

I think I have more thermal headroom, but I seem to be limited to 2800MHz core and ~310W power limit by the vBIOS.
 
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Justinus

Platinum Member
Oct 10, 2005
2,344
470
136
I think the big secret right now is to use MorePowerTool to override the registry entries for power limits, provided you can cool the card sufficiently. You can also reduce VSOC voltage max to around 1 volt to save power budget for the GPU core to clock higher. That value requires some testing, some cards will do lower like 0.900 or 0.950v if they are good samples.

On my 6900XT reference (EK block) bone stock

1611616698740.png

2100 mem, 2600 max clock, 115% power.

1611616420829.png

Same as above OC, but with power limits raised beyond practical limits by MorePowerTool.

1611615925896.png
 
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