Intel Quad Q6600 @ 3.0 Ghz using BSEL mod.
2gb dell stock ram
Radeon hd 4850 oc'd 670/1076
ASUS 750i mobo
550W Antec True Power Trio
250GB samsung 7200 rpm hdd
Windows XP Home edition
The problem im having is that I get really low fps in games that are supposed to be higher, according to benchmarks
for instance, in world in conflict, everything maxed, at 1440x900, i average around 25 fps on the stress test. Also, in Assassins creed, everything maxed, 1 multisampling, I average 25-30 fps. In crysis, its pretty good, I average around 35-40 fps in forest situations.
In call of duty 4, single player, I average around 40-50 fps in intense maps.
could an nvidia board with an ati card be the problem?
no way to tell, as you don't have parameters for the ram
if its ddr2-667 at least then I don't think it will really matter
Anyways, the HD 4850 is a pretty nice card for its money wtE - but its far and beyond not a video game stomping card, make sure you update to the catalyst 8.7 as they claim there are a number of performance improvements in that.