2 gpus in crossfire how do i set them up?

bobbarkee

Reputable
Aug 9, 2014
23
0
4,510
ok i have 2 r9 280x's one is an
xfx double dissapation running stock at 1080MHz core clock, 1550MHz mem
the other is
sapphire dual x running stock at 1020MHz core clock, 1500MHz mem

now would i get best performance just leaving them like they are or do i need to over/under clock them to run at the same clocks to get best performance?

right now they seem to run fine together and in firestrike i seem to get just about double the score.

Any advice would be appreciated!
Thanks
 
Solution
They should default to the lower clock speed in crossfire. You could also overclock the sapphire card to match the xfx card if you wanted to, I did it with a 7970/280x crossfire with no issues. The clock difference is so small you probably won't notice a difference though.

krells

Distinguished
They should default to the lower clock speed in crossfire. You could also overclock the sapphire card to match the xfx card if you wanted to, I did it with a 7970/280x crossfire with no issues. The clock difference is so small you probably won't notice a difference though.
 
Solution