Crossfire overclocking

[BluD]

Hello, Just wondering if anyone noticed any downside to overclocking your cards to different speeds in crossfire? I know crossfire can be temperamental and i dont want give it more reasons to cause stuttering and crashing

GPU1 runs at 1300/1900 but GPU2 will only go to 1275/1750, there isnt much in it, but if i can run one faster without issues i would like to.

Ta.

 

[Mynight]

Edit: no I was wrong sorry.

 

[thesmokingman]

any downside to overclocking your cards to different speeds in crossfire?

It's generally advisable for "gaming" to keep clocks as similar as possible to reduce differences in latencies.

 

[setter]

Not sure if xfire is similar, but different clockspeeds in sli are fine, my cards in sig have slightly different core clock boost speeds. 1097 and 1124mhz respectively.

 

[tommybhoy]

In game, different clocks are pointless as core utilisation on the higher clocked card drops to match the lower clocked gpu- slower card running at 99% utilisation and the faster card runs at 95%(example figures and presuming vram works the same).

Benchmarks usually run full utilisation across gpu's though.

 

[BluD]

Oki makes sense, so i might aswell just even them up for gaming, and maybe just push the better card when im benchmarking.

Cheers guys.