im up with the RAM certainly not helping.....i have a second puter that my mum uses (P4 3ghz 800fsb, 80Gb 7,200rpm HDD, Radeon 9800XT) that got 6,5xx with 512Mb RAM, then when i added another 512Mb it rocketed up to 7,2xx (3dmark03 im talking here). Havnt gotten around to testing it with HL2 or Doom3 yet, but that might be cuz im happy on my PCI-E based puter of identical specs but with a 6800 GTO card o'c as in my sig....lol. That gets around 11,5xx on 3dmark03. Might have to try just 512Mb in the puter to see if it lowers the scores by much......
As for drivers and that sorta stuff im not that up on the knowledge, i just make sure my BIOS for puter is up to date and that im running the driver that gets me the better score/fps thats currently available.
My advice tho? go buy a Dell
hehe (let the flaming begin...lol)
edit: btw, im at work so dont ask me to post HL2 or Doom3 benchies cuz im at work and can never remember what they are, but the 3dmark scores stay in my head cuz i tested them so much when first o/c'ing the card...lol