I'm very impressed with the HD6990 4gb, it can run Metro 2033 @1080P, max ingame, no PhysX, and still net more than 40fps average frame rate......somehwta better than a single HD7970. In UT3, which I had always believed I was CPU limited, I see higher average frame rate as compared to a single HD6970....so, I think this only shows that with a single HD6970, I was still a little gpu limited with UT3.
Back to topic, I hope that with the release of the GTX660 Ti, the price of the GTX670 drops somewhat, then I will grab another for some SLi action.
Rig 1 - Intel LGA2011 i7 3960X + Corsair H100 | Asus Rampage IV Extreme | 4x 4GB Corsair Dominator Platinum 2133mhz | 3x HD7970 3GB TriFire | Corsair 120GB ForceGT SSD (OS) | 2TB + 2x 1TB WDC Black (Storage) | Mobo Audio + Z-5500 + Razer HP1 | Ducky Shine 2 78 Version + Tt Level 10M | Seasonic X-1250 | Tt Level 10GT | 64bit Win7 HP |
Rig 2 - AMD AM3+ FX8350 + CM Hyper 412 Slim | Asus Crosshair V Formula | 4x 4GB RipJawsX 2133mhz | SLi 2x GTX670 2GB | 120GB Corsair Force GT SSD (OS) | 2TB Hitachi Deskstar + 2x 500GB WDC Blue | SupremeFX X-Fi MB2 + Klipsch PM2.1 | Ducky Shine II Special Ed Blue + Logitech G9 | Corsair HX1050 | Corsair 650D | 64bit Win7 Pro |
Rig 3 - Intel C2Q X9650 @3.7ghz + TRUE120 Black | Asus Maximus II Formula | 4x 2GB KHX PC2 8500 | Sapphire HD6990 4GB + MSI HD6970 Lightning | 120GB Corsair Force 3 SSD (OS) | 1TB WDC Black + 1.5TB WDC Green | Auzen X-Fi Forte | Filco MJ Ninja Brown + CM Xornet | SS OP1000 | NZXT Phantom 410 (Red) | 64bit Win7 HP |