I think they contribute to the score. I got a lowly 1647, then another run gave me 1404 or there abouts. This was done using my old K8V Se Deluxe motherboard, and my AGP 6800NU (unlocked to 16x6, 434core/838mem, stock cooler with a HDD cooler on the top).
I have yet to bench my new settup, which is an Epox EP-8na sli mobo and a leadtek 7800GT 256 TDH. I have a clean install of XP so im hoping to see a big difference. Im itching to get home and get a baseline on stock frequencies prior to roasting up the overclocks.