Most likely a Pentium D cpu bottleneck. Pentium Dual Core and Core2s are much better.
Try OCing your cpu to see if you get any improvements.
If you just built it, why the Pentium D? That's a lot slower than current gen CPUs.
I had the processor unused and just sitting there. When building the pc I figured I'd put it to use. It's not that good but it's better than paying for new CPU. I mean...can the CPU alone cause the score to be that horrendous??
"Pros: Took some work to get it stable for gaming but currently running at 4.1GHz (1.36v 24/7) with an Arctic Cooling Freezer 7 Pro and idling at 33*C. Max under non-synthetic usage is appx 56*C. Huge performance increase from Pentium D 820 ( OCd to 3.8Ghz 24/7 ). As the CPU had previously been a bottleneck Far Cry 2 went from 25-30 FPS with random hangups to 45-50 with no lag ever."
I totally agree with all that Pent D is total junk! I have email@example.com w/9800GT and it score 14000+ ,my firstname.lastname@example.org w/GTX260 scores 18000+ , and just to rub it in my i7 920 @ 3.5ghz w/ 2x 9800GT's scores over 21000! http://valid.canardpc.com/cache/banner/590587.png