I read that the 512MB 9800M has a 65nm core, but to keep the 1024MB 9800M's TDP at 75W, Nvidia reduced the core to 55nm, because apparently the memory produces a good amount of heat. This has gotta make a difference for overclocking. I would assume that if heat or power were an issue, the 55nm one could have the core and shaders overclocked more than the 65nm one, but the 65nm one could have the memory overclocked more.
As for me, I am using the stock 120W PSU and can't do much overclocking, so should I just overclock the core and shader slightly but not the memory? (I have the 55nm one.)
As for me, I am using the stock 120W PSU and can't do much overclocking, so should I just overclock the core and shader slightly but not the memory? (I have the 55nm one.)