I've been playing with crossfire for a bit now and while I am relatively new to it, I don't think that I'm missing anything obvious. I have an AMD FX-8150, overclocked to 4.8GHz on 8 cores, and I use two Radeon HD 7950s. I know that generally my CPU won't bottleneck the two but I understand in games that are both CPU and GPU intensive, I will experience bottleneck. I always monitor my usages, and my load percentages and clock speeds. I have my processor always kept at that speed while both of my cards are clocked at 1120/1600 with +20% power. I feel like I'm definitely missing some power. I know that not all game benefit from or use crossfire and in rare cases actually lose performance with both cards active. But it seems like almost every game I play just simply fails to benefit at all from crossfire.
I've tested The Witcher 2 on highest settings (except Ubersampling), Shadow Warrior (2013), Planetside 2, and even AMD oriented games such as Crysis 3 and Hitman Absolution. In every one of these games I notice poor performance increases or no performance increases whatsoever even when my CPU is clearly not above 75% usage (so, clearly no bottleneck, right?) with my cards also having what seems to be a properly optimized high GPU usage percentage. Far Cry 3 gets worse, Planetside 2 I think doesn't use the second card at all, Crysis 3 shows no change even though both cards are being utilized, the Hitman Absolution benchmark tool shows decreased performance from crossfire.
Am I missing something here? I've done countless fresh installs of drivers using driver sweeper, and am currently using Catalyst 13.2. I recently started looking in to Catalyst Application Profiles, and I really don't think I fully understand what they do, could these be what I need to get my games to function properly? I've never downloaded or used any CAP, should I?
Relevant System Specifications List:
Windows 7 Ultimate 64bit
AMD FX-8150 @4.8GHz
2x Radeon HD 7950 @1120/1600MHz
16GB DDR3 @1600MHz
Corsair TX850M
I've tested The Witcher 2 on highest settings (except Ubersampling), Shadow Warrior (2013), Planetside 2, and even AMD oriented games such as Crysis 3 and Hitman Absolution. In every one of these games I notice poor performance increases or no performance increases whatsoever even when my CPU is clearly not above 75% usage (so, clearly no bottleneck, right?) with my cards also having what seems to be a properly optimized high GPU usage percentage. Far Cry 3 gets worse, Planetside 2 I think doesn't use the second card at all, Crysis 3 shows no change even though both cards are being utilized, the Hitman Absolution benchmark tool shows decreased performance from crossfire.
Am I missing something here? I've done countless fresh installs of drivers using driver sweeper, and am currently using Catalyst 13.2. I recently started looking in to Catalyst Application Profiles, and I really don't think I fully understand what they do, could these be what I need to get my games to function properly? I've never downloaded or used any CAP, should I?
Relevant System Specifications List:
Windows 7 Ultimate 64bit
AMD FX-8150 @4.8GHz
2x Radeon HD 7950 @1120/1600MHz
16GB DDR3 @1600MHz
Corsair TX850M
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