not any more.
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Apr 4, 2005
Photoshop CS2-How much RAM? – Fact
Posted By Jeff Schewe
Adobe® Photoshop® CS2 will be able to go beyond the previous 2gig/process barrier that pervious versions of Photoshop were limited to. The answer of “How Much Beyond� varies. . .
On OS X with the supported system versions, Photoshop CS2 can go to 3+ gigs. The actual amount could be 3.5 gigs or so, but due to certain reporting issues, it’s tough to say precisely. Tiger (10.4) will not expand beyond this limit since at the root, OS X is still really only a 32 bit OS with certain 64 bit optimizations and Photoshop CS2 is still a 32 bit application for both Mac & Win.
For Windows, the answer is more complicated. If you are running Win 2K or XP Home/Pro with SP1, the limit is still 2 gigs. With XP Pro & SP2, the limit is 3 gigs -IF- you’ve enabled the 3 gig boot switch, which can be problematic.
If you are running the released version of Windows XP 64 bit edition and are running either an AMD64 or Intel EM64T chipset, the limit will be 3+ gigs or so with the same issue of reporting issues.
That is not to say that Photoshop and your OS will not benefit by having more ram. More is always better (unless you have motherboard or ram chip issues). Having an excess of ram beyond what Photoshop can directly use will still benefit the system by reducing system paging and additional applications running will still be able to use the ram. With Photoshop CS2, the engineers are doing some special OS caching."
Sooooo if you understand all that....
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