You might have posted in the wrong forum: This forum is primarily for those who need a system configuration for Premiere Pro. So, you'll see responses from the video editing guys that dominate this particular forum.
If you are not going to edit video, you don't need CUDA or even an nVidia card... a less expensive ATI card with at least 1Gig if ram will work fine
But... you should ask in the Photoshop forum
As far as CS6... nobody here knows anything, or, if they do, they can't say
Thank you John but it, that's what I though but it seems Photoshop uses CUDA for some actions (no ideas wich ones).
Any way I'm sorry for the forum mistake. I will re-post in the Photoshop forum (windows)
kooquou, my current box has a mere Q9550 Core 2 Quad, with 8Gb RAM and a Radeon 4850 2Gb (no CUDA). It runs Photoshop CS5 perfectly well, as it does third party plug-ins like the Topaz bundle. In fact it is only a renewed interest in video that has prompted an upgrade to a 3930K X79 based system, or I'd have been happy to stay as I am. It actually runs Premiere Pro CS5 reasonably well, but I have to wait for renders and exports. Photoshop is used with 21Gb files from a 1DsMK3, and often with five or more images layered for HDR renders, and hundred plus layered projects. Photomatix takes about a minute to merge five files to HDR.
Photoshop became hungry for RAM with CS4, but with 64bit Windows 7 and 8Gb, it really doesn't need state of the art hardware. I do have multiple hard drives including two VelciRaptors, one of which is reserved for Photoshop Scratch space.