How much RAM is for CS4

JP
Posted By
james_park
Mar 1, 2009
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206
Replies
2
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Closed
I have been using CS2 for a few years without any problem. Recently, I updated CS4. It appears that my computer (2 GB RAM with WinXP Pro SP3)is a little hard. Sometime, cursor is crawling for a few seconds intermittently. It could be caused by other factors, though. I wonder whether 2 GB is not enough for CS4 or not. With CS2, I did not notice similar problems at all. What do you think? James
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Bob Levine
Mar 1, 2009
Have you updated to 11.0.1?

Bob
G
gowanoh
Mar 1, 2009
Presuming you have a modern DDR motherboard with four RAM slots doubling the memory to 4 gbs will allow more memory to Photoshop but really only 3 gbs will be seen by the OS.
There is a command line switch that makes more memory available for programs that is usually reserved for the OS but it makes little practical difference to everyday use.
Going to 4gbs of RAM is a reasonable option.
In truth the speed at which Photoshop runs is primarily dependent on Processor speed. Two or 4 cores are better than one, not because of multithreading, which is limited in Photoshop, but because the OS can offload background processes to other cores.
Most benchmarks I have seen do not show great practical differences running Photoshop on a 64 bit OS, which allows for more RAM. The most likely reason is that single threaded processes still have to shovel all their data through one processing core regardless of how much physical ram is available.

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