I get your point, but i forgot to mention something.
Im doing this for a school project, to determine whether it is better to upgrade a GPU or a CPU. So I trying my old kit (dual. core and 8800 GT) with a i7 and hd 5870.
Combinations are: dual and 8800gt
Hd 5870 and dual
8800 GT and I7
Hd 5870 and I7
I gotta get results for each using benchmarks, so ya...