kingfish

Catalyst Power Limit settings

Discussion created by kingfish on Jul 2, 2015
Latest reply on Jul 3, 2015 by black_zion

I did some testing using Furmark with different power limit settings. AMD R9 290. First with power limit set to +50 which disables the throttling feature and then at the default (0) energy saving setting. The Control panel 3D settings are my normal game settings..only the power limit changed.

 

With default (0) setting:                          With +50 (max) setting

Min fps = 58                                       Min fps = 69        = +15.9%

Avg fps = 64                                      Avg fps = 70        = +8%

Score = 3845                                    Score = 4214      = +9%

 

Benchmark comparisons > FurMark Scores, Comparative Charts (v1.9, 1.10, 1.13, 1.14) | Geeks3D 

(notice the crossfire benchmarks with and without the max power limit setting) ..Example>

 

Sapphire Radeon HD 6970 CF (GPU@880MHz, mem@1375MHz, max GPU temp:78°C, two GPUs / CrossFire ON), TPC: 87W(PSU1) + 33W(PSU2) /430W(PSU1) + 240W(PSU2)

(on H67 testbed v2), Catalyst 12.3 whql (Win 7 64-bit)
4704 points (78 FPS), PowerTune: +20%

 

Sapphire Radeon HD 6970 CF (GPU@880MHz, mem@1375MHz, max GPU temp:78°C, two GPUs / CrossFire ON), TPC: 87W(PSU1) + 33W(PSU2) /352W(PSU1) + 176W(PSU2)

(on H67 testbed v2), Catalyst 12.3 whql (Win 7 64-bit)
3505 points (58 FPS), PowerTune: 0%

 

[Tested] Radeon HD 6970 PowerTune Technology | Geeks3D

 

Interestingly, Valley and Heaven showed no difference between -50 , +50 , or 0 (default). I am assuming that is because these benchmarks ignore the driver/CCC settings.

 

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