Will More RAM Make Photoshop Run Faster?
Problem: You added more RAM to your system and assigned more RAM to Photoshop, but it doesn't seem to run any faster. Reason: Adding RAM doesn't always make Photoshop run faster. It only works if you didn't have enough RAM to begin with. Adding RAM will only help to make your computer run as fast as it can, but it won't make your 800-MHz computer run at 801 MHz. For example, if you work on Web images and the average image you work on is 3 MB, you only need about 15 or 20 MB assigned to Photoshop to have it run at full speed. If you've got that, and add another 256 MB of RAM, Photoshop won't run any faster, because Photoshop only needs that 15 or 20 MB that you already had. Freaky. To check your RAM usage, go under the Photoshop menu, under Preferences, and choose Memory & Image Cache (on a Windows PC, Preferences are under the Edit menu).
Not to mention that windows xp and vista will only reconginse 3 gigs of ram anyway. You have to have xp or vista 64 bits to reconginse 4 gigs and up. You could try increasing your virtual memory to see if that helps. If not you need a computer with a faster cpu. I don’t know how this would apply to a apple computer since I am windows girl only.