Which is a better card and why?

[insane001]

i am offered to cards and dont know which one to go for??

GeForce 6600GT 128Mb DDR +DVI/TV PCI-X

OR

GeForce 6800XT 256Mb DDR +DVI/TV PCI-X

And which CPU is better for gaming:

Intel P4 630 3.0Ghz Skt 775

OR

AMD 64-Bit 3200+ (Skt 939)

Thanks

 

[CrossFire851]

I like the looks on the PCI-E 6800

I would in terms of gaming go for the 3200.