nothing is overclocked on mine no more.. just havent got round too tweaking since i set it all to stock again.... with just my self on track i get 120 fps and i get what i get as said above....
iv only played with the AA and AF a little as i dont know much about it.. i set it all too ful.. AA-6, and AF-16 or visa versa.

illepall and when playing with a full grid i only for 20fps.. i dint like that so its all back to default LOL
the original question about the 32mb was will it run lfs.. its only a £10 and i though its worth the gamble just too see if it works... cause im still not sure it will work.. guess trying is the only way really...
imy settings are also all on full in lfs its self..