Wha? Not sure what iMac you're talking about, but my i7 iMac sure as heck doesn't run Starcraft II in ultra at 2560x1440, that's for sure.
On windows it does.
Wha? Not sure what iMac you're talking about, but my i7 iMac sure as heck doesn't run Starcraft II in ultra at 2560x1440, that's for sure.
On windows it does.
Yeah, it improves loading times but not the actual gaming performance. Not really worth it for games though
Hm with reduced shaders it does
http://support.amd.com/us/gpudownload/windows/Pages/radeonmob_win7-64.aspx
Download the first one. That's for 64-bit Windows 7 so let me know if you have something else