Amd 64 3000 + 7900GT > 7600GT + X2 4200 for most games
An overclocked Amd 64 3000(at 2.8) will surely beat or equal a Amd 4000, this is mostly maths.
For deriving the first you need to do some logic and maths :
GPU benchies
http://xbitlabs.com/articles/video/d...-x1800gto.html
Now you have an idea how a graphic card performs with a good CPU.
http://www.tomshardware.com/2006/05/...de_2006_part3/
Now you have an idea how a GPU performs with a mainstream CPU.
But still we need to know whether a better CPU helps or not, right, read on.
CPU benchies
http://www23.tomshardware.com/cpu.html
Please select gaming bechies preferably at high res and all.
http://xbitlabs.com/articles/cpu/dis...pu-games2.html
Do keep in mind that what I say is only true if you play at high settings, maybe 12X10 MAX or 10X7 MAX not if you are going to be doing 800*600 MED or something.
http://enthusiast.hardocp.com/articl...hlbnRodXNpYXN0
This is is a really important one for you.
http://enthusiast.hardocp.com/articl...hlbnRodXNpYXN0
The only downside is that they haven't all shown the min fps.