Well, forget the previous comment. Some people think that running Windows 7 on a 2 year old PC with a 5 year old graphics card are "up to date". Nope, this is why the PC versions of this series have continued to show increasing quality differences between the PC and their console counterparts! I am currently running BO2 with a i7 Quad Core 2.8 processor, 560Ti Nvidia card and 8Gb of RAM. What a beautiful game. The only thing that slows it down at full eye candy of 1920x1080 with FSAA FXAA and all textures on high is the Ambient Occlusion. This has always been known to need a behemoth of a graphics card to run with everything on switched on, but turning it off still gives me frame rates of over 60 per second.
Beautiful maps, a far improved sound system similar to the Battlefield series and I feed a lot more responsive than MW3, many people put off by the last IW release will be hopefully refreshed with this version from Treyarch. I hated MW3 - it was MW2 with new maps. This is certainly a step up from the original Black Ops and it's worth every penny as far as I am concerned. Enjoy!