Hi guys I need your help as I am running out of ideas and am not sure what is going on, but first the system specs:
Asus Sabertooth X79
i7 3820 @ 4.3ghz - ExtremeWater 2.0
Corsair Vengeance 32GB @1866mhz
OCZ Vertex 3SSD
Corsair HX850watt
eVGA GTX780s FTW SLI
LG Ultrawide @2560x1080
I am not really new to computers but this has me puzzled the only two games I play right now is SC:2 and BF3 (waiting for 4)...while im gaming in SC:2 I run one card as two is not needed but for BF3 I run two as I play on ultra with 64player servers BUT running two or one is not giving me any fps gains. Running one for sc2 or bf3 with yield in 85-98% gpu usuage running two will yield in 55-73% usage no mattter what but the fps stay at the same level as a single card, and yes vsync is OFF. The cpu usage is around 53-60%. I have included two graphs from in game perfoverlay to show you guys better.
This is BF3 with a single GPU on a 64player server.
- as you can see the gpu and cpu r in a good sync pumping out fps..
This is BF3 in SLI mode on a 64server
- as you can see the CPU is performing well but the GPUS are behind and out of sync which is wierd since now theoretically i should have 180% GPU power.
For further testing I have use each card in single mode and both load ay 90%+ and in SLI mode running synthetic benchmarks the scores are on part unigine heaven @2456 and ungine valley @4340 so Im puzzled if anyone could help or have any ideas id love to hear em. THANKS!
Asus Sabertooth X79
i7 3820 @ 4.3ghz - ExtremeWater 2.0
Corsair Vengeance 32GB @1866mhz
OCZ Vertex 3SSD
Corsair HX850watt
eVGA GTX780s FTW SLI
LG Ultrawide @2560x1080
I am not really new to computers but this has me puzzled the only two games I play right now is SC:2 and BF3 (waiting for 4)...while im gaming in SC:2 I run one card as two is not needed but for BF3 I run two as I play on ultra with 64player servers BUT running two or one is not giving me any fps gains. Running one for sc2 or bf3 with yield in 85-98% gpu usuage running two will yield in 55-73% usage no mattter what but the fps stay at the same level as a single card, and yes vsync is OFF. The cpu usage is around 53-60%. I have included two graphs from in game perfoverlay to show you guys better.
This is BF3 with a single GPU on a 64player server.
- as you can see the gpu and cpu r in a good sync pumping out fps..
This is BF3 in SLI mode on a 64server
- as you can see the CPU is performing well but the GPUS are behind and out of sync which is wierd since now theoretically i should have 180% GPU power.
For further testing I have use each card in single mode and both load ay 90%+ and in SLI mode running synthetic benchmarks the scores are on part unigine heaven @2456 and ungine valley @4340 so Im puzzled if anyone could help or have any ideas id love to hear em. THANKS!
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