RAM/Cores/Graphics question

[0071284]

Hi guys,

With regards to RAM, number of cores, and graphics cards, what actually runs what?

For example. If you are running lightroom, photoshop, iTunes, safari, and dual displays, how is that all split up?

Will closing safari and iTunes speed up photoshop? Is there a limit to when it will actually make a difference - i.e., if you have 8 gb of RAM vs 16?

Is there any site or post somewhere that describes what programs actually use what?

Thanks for any help.

 

[derbothaus]

This should do you for the foreseeable future.
http://macperformanceguide.com/index_topics.html