Which graphics card and RAM set-up is better
Which graphics card and RAM set-up is better
The most straight-forward answer to your question(although probably not what you wanted to know) is that in the case of graphics cards Radeon HD6990 and GeForce 590 share the throne, although they both cost very much and are very hard to obtain, the latter costs as much as a budget PC.
As for RAM, quad channel configuration for the new Sandy Bridge-E Intel processors(Co
re i7-3820 - Core i7-3960X) is the best right now.
It depends on what you're planning to do with that computer.
If watching 1080p HD movies is what going to stress the graphics card the most then some built-in graphics cards can handle that.
As for Ram you needn't worry, even 1GB(for win 7) should be sufficient.
If some gaming may be present then you should ask yourself, how much will you spend on the graphics card?
A mid-end 1GB graphics card and some 512MB card should handle most top games at mid-high quality.
And for RAM a Dual-channel 4GB(2X2GB) 1333Mhz configuration is both cheap and sufficient for all your needs.
