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Crossfire Freq questions

M

mach1.9pants

Weaksauce
Joined
Nov 23, 2006
Messages
101
Hey all
I have a quick query, I always thought that when using CF or SLI with cards with different speeds, the faster one would slow down to match the slow card. I have a TriX 290 running at 1000/1300 and a stock ASUS (with at Gelid Icy Rev 2 cooler) running at 947/1250 in slot 2. I have not got around to seeing if the stock card will run at the higher freqs yet. However I just check Afterburner whilst gaming and it showed both cards running at their max, and different, freqs rather than both at 947/1250.
So is CF different than SLI, or has something changed, or is Afterburner lying?

Thanks

MP :confused:
 
I'll assume that you're using the latest Mantle drivers. If you pop open AMD Catalyst Control Center, click Performance and then AMD Overdrive. Use the drop down box there to select your cards and see what speeds they are set to. I use this page to set my card's speeds since MSI AfterBurner fails at it 99.9% of the time.

:)
 
no, i think both cards run at their default speed, even if they are different,
if you want to run them at the same speed then you either lower clocks on one or up the clocks on the other in the performance section
 
That is my plan, BF4 was really unstable so I didn't want to play with it. Now it seems OK so I intend to OC the slower one to 1GHz, leave the memory
 
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