I purchased a second MSI 7970 last week to go along with my original HIS 7970 as im using eyefinity. The single was working quite well with pretty much medium settings and no aa running about 45fps in most games like bf3, crysis 3 etc. Sometimes better sometimes slightly worse, but ALWAYS smooth. Anyway i though i would like to be able to turn aa back on and hopefully reach 60fps as well with a second card.
The result of adding the second 7970 has been less than pleasing, while frames per second have increased notably and i am indeed getting above 60 fps in nearly all games with aa turned back on the gameplay is extremely choppy and not smooth. Feels alot more like 20 to 25 fps on a single card, I'm wondering if anyone has any tweaks or solutions that may have worked for them, not necessarily in eyefinity but just with crossfire in general.
What i have tried so far..
I have the new AMD beta driver installed with the caps profiles.
I originally had the HIS 7970 in the top slot as the primary but switched them around and now have the MSI 7970 as primary for a very slight improvement. The HIS overclocks slightly better but i have them synchronized to the same speeds with afterburner to 1075 for core clock and 1550 for memory clock with +20 power limit.
I have tried rivatuner fps limiter with limited success. It seems to be the best bet so far. Some games still experience what i would describe as stutter rather than the choppy gameplay i described earlier which is a better result but still not ideal. Also i find myself having to limit my frames to what i could already achieve with a single card making crossfire pointless.
I have tried using D3D override and forcing triple buffering, again with limited success, not sure if v-sync should be enabled or disabled with triple buffer, or whether or not i should be using the fps limiter with triple buffer?
I have turned ULPS off in the registry.
I have tried at stock clocks and it just runs worse.
Any help with tweaks or anything at all would be great. Feel like i have just blown $400 bucks on a 2nd card that does little to nothing. Not to mention the eyefinity setup that is usable with a single card but not really at the level i would like meaning if i can't sort out crossfire it's a god chance i will be heading back to a single screen with a single gpu losing more money again in the process. Thanks.
The result of adding the second 7970 has been less than pleasing, while frames per second have increased notably and i am indeed getting above 60 fps in nearly all games with aa turned back on the gameplay is extremely choppy and not smooth. Feels alot more like 20 to 25 fps on a single card, I'm wondering if anyone has any tweaks or solutions that may have worked for them, not necessarily in eyefinity but just with crossfire in general.
What i have tried so far..
I have the new AMD beta driver installed with the caps profiles.
I originally had the HIS 7970 in the top slot as the primary but switched them around and now have the MSI 7970 as primary for a very slight improvement. The HIS overclocks slightly better but i have them synchronized to the same speeds with afterburner to 1075 for core clock and 1550 for memory clock with +20 power limit.
I have tried rivatuner fps limiter with limited success. It seems to be the best bet so far. Some games still experience what i would describe as stutter rather than the choppy gameplay i described earlier which is a better result but still not ideal. Also i find myself having to limit my frames to what i could already achieve with a single card making crossfire pointless.
I have tried using D3D override and forcing triple buffering, again with limited success, not sure if v-sync should be enabled or disabled with triple buffer, or whether or not i should be using the fps limiter with triple buffer?
I have turned ULPS off in the registry.
I have tried at stock clocks and it just runs worse.
Any help with tweaks or anything at all would be great. Feel like i have just blown $400 bucks on a 2nd card that does little to nothing. Not to mention the eyefinity setup that is usable with a single card but not really at the level i would like meaning if i can't sort out crossfire it's a god chance i will be heading back to a single screen with a single gpu losing more money again in the process. Thanks.