GPU Core Clock Performance

[Carliscra]

Hey everyone, in the near future I am planning on upgrading to two r9 280x's in crossfire, but while I was check out the cards on scan.co.uk, some of the cards had a different core clock (higher or lower) and I was wondering how much of a performance difference a card, for example with a core clock of 850MHz would have compared to a card with a 1000MHz core clock?

Cheers!

 

[Smart_Guy]

Depending on the game, if it is about games, it could be nothing up to max 8-10fps, and that's if you were lucky enough. I got this result overclocking my GTX 480 and got artifacts, which you shouldn't, if the overclocking is factory set.

If the price difference is not much, get the higher clock.

 

[BikerEcho]

The cards with the 1000mhz clock is just pre overclocked. you can overclock the 850mhz version to 1000 as well if you want.