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Frames drop while crossfiring

Last response: in Graphics & Displays
December 28, 2012 8:45:26 PM

Hi my brother is cross firing 2 radeon hd 7700s and his frames dropped big time. What could be the problem?
a b U Graphics card
December 31, 2012 2:24:04 AM

What game?
What OS?
Whats the system Specs/PSU?
What Driver version?
Does he have the Cap Profiles?
Did he have another video card other then the 7750/70's in the system?

Due to the lack of info, I can't provide an answer for ya, We will need to know all of the above to answer your question. Some games don't like crossfire, some do, Sometimes a driver setting in CCC could effect the FPS a lot, Or it could be a Power supply thats not able to provide enough power, could also be the CPU bottle necking the cards (Old timer CPU, People forget that too old of a CPU can seriously effect Video card performance, Crossfire will put more load on the CPU then what a single card does).

We need info!