And that again depends completely on what you're doing. Having a 8gb PS workingset is quite out of the norm for most uses though - that must be quite a large file (postersize?) with some of the more complex filters.For photoshop I would go with 8GB.
I'm building a new pc with 8gb of ram but I keep hearing people say that having 4gb is enough :hmm: and it's useless to go over that amount
4GB IS enough ram, but with the price of ram so low, why the hell not?
Depends completely on what OS and apps you run. For WIN7-64bit, as a general guideline 4GB is enough for surfing, email, ms-office etc. For photoshop I would go with 8GB. Personally I would go with 8GB immediately, given the relatively low ram prices (assuming your budget allows it), and that WIN7 is pretty good in using all ram (free ram is used as diskcache).
On an unrelated note, an SSD is well worth it if you can afford it.
I have 4 x 4GB modules in my machine because the price was dirt cheap and i run multiple VMs. Yeah, i use it all (almost) most of the time.
Well I use my pc for gaming (Modern Warfare/Black Ops, Battlefield 3) & general browsing/watching videos.
I should upgrade to 8gb instead of 4gb shouldn't I?