I get my evga 560 TI 448 in earlier today and just get finish install it . it replace a EVGA gtx 280 . I uninstall the nVidia driver , reboot to safe mode and run DriverCleaner . reboot to Windows 7 and d\/l ` ed the 266.66 and the 285.62 to test which be better . I begin to install the 285.62 and it could not find a support device , same with the 266.66 . sooo , I actually resort to use the CD setup and it work like a charm . I be get a 24.8 fp avg in Unigen Heaven with the 280 on dx10 with a score of 625 . I run the same setting with the 560 and hit 40.8 fp avg with a score of 1029 . I have not touch the clock yet so I can not comment on the O.C. I usually do not O.C. my video card anyway . my system be a e8500@4ghz run 4gig of ddr2 ocz reaper @ 800mhz . not sure if it be bottleneck yet . evga be great with a replacement I have about 3 year ago so I feel confident in the selection . I be still not certain if the price increase be worth it for the extra core and memory , but we will see .