Hi Folks, its literally been an age since I posted on this forum, I had a fairly extensive Diversion into the realms of HiFi Building. But now I perceive its time to upgrade my PC as recently my BF3 performance is lacking, Iv'e tried all I can to squeeze more frames at the Highest settings I can manage but I need more and with MOH Warfighter coming out I need to push the envelope. Here are my current system specs: EVGA GTX580 1.5gb EVGA GTX460sc (for Physx) Intel i7 930 @ 3.80 GHz, Asus P6X58D-E, 12.00 GB Corsair Vengeance ram, 1TB Samsung Spinpoint F3, Corsair 850W PSU, So........ Firstly I was thinking of upgrading my GPU's: Getting rid of the GTX460sc and replacing it with another GTX580... However I have the 1536MB 384-Bit GDDR5 version. I now see that there is up to 3GB versions... Would it be worth me swapping the existing GTX 580 out for one of those? Is there much improvement in performance over my current one to warrant replacing it with a view to getting another 3gb one later on for SLI My initial intention was just to get another 1.5GB to replace the GTX460 i'm using for Physx. What would be your opinion???