I decided to get a second 680 FTW+ 4GB for SLI to power my surround setup with 5760 x 1200 resolution (bezel corrected 6120 x 1200). I have been playing dirt 3 for a while. My problem is that I can't get SLI to scale up in performance. Each card by themselves are giving me results on par with the reviews for 5760 x 1080.
http://www.tomshardware.com/reviews/geforce-gtx-680-sli-overclock-surround,3162-6.html
http://www.legitreviews.com/article/1904/6/
Instead of ultra settings, I play on high settings to keep fps around 60 with vsync enabled. When it's disabled it stay between 59 and 85. When I enable SLI, my fps drops to between 45 and 65, when I should be getting almost double (i think). I have done fresh windows 7 install and I have the 306.23 drivers. My 3DMark11, 3DMark Vantage and Unigine Heaven benchmarks scale up nicely. For instance Heaven benchmark scores GP1-1314, GPU2-1312, SLI-2041. Overclocking the cards brings the fps on dirt3 up a bit, but I should be getting more, or I just wasted $600. I think its gotta be something with the game, like a file or executable or maybe SLI profile, or something. I really don't know. Any help would be greatly appreciated
My Specs are
2500K, P8Z68-V/Gen3, HCG 750w, Vengeance 4x4GB 1600, Windows7 64bit,
http://www.tomshardware.com/reviews/geforce-gtx-680-sli-overclock-surround,3162-6.html
http://www.legitreviews.com/article/1904/6/
Instead of ultra settings, I play on high settings to keep fps around 60 with vsync enabled. When it's disabled it stay between 59 and 85. When I enable SLI, my fps drops to between 45 and 65, when I should be getting almost double (i think). I have done fresh windows 7 install and I have the 306.23 drivers. My 3DMark11, 3DMark Vantage and Unigine Heaven benchmarks scale up nicely. For instance Heaven benchmark scores GP1-1314, GPU2-1312, SLI-2041. Overclocking the cards brings the fps on dirt3 up a bit, but I should be getting more, or I just wasted $600. I think its gotta be something with the game, like a file or executable or maybe SLI profile, or something. I really don't know. Any help would be greatly appreciated
My Specs are
2500K, P8Z68-V/Gen3, HCG 750w, Vengeance 4x4GB 1600, Windows7 64bit,
Big Brother
(18 items) |
HAF Brother
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| CPU | Motherboard | Graphics | RAM |
|---|---|---|---|
| core i3 | Biostar h61ml | Asus EAH6450 Silent | kingston HyperX |
| Hard Drive | Cooling | OS | Power |
| western digital Caviar green | thermalright hr-02 macho | windows 7 | corsair cx 430 |
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|
Big Brother
(18 items) |
HAF Brother
(9 items) |
| CPU | Motherboard | Graphics | RAM |
|---|---|---|---|
| core i3 | Biostar h61ml | Asus EAH6450 Silent | kingston HyperX |
| Hard Drive | Cooling | OS | Power |
| western digital Caviar green | thermalright hr-02 macho | windows 7 | corsair cx 430 |
| Case | |||
| HAF 912 | |||
| View all | |||
