The smaller manufacturing process means that each transistor is smaller so it uses less energy to power the transistor. Because the chip uses less power, it should be able to run at a faster clock speed at the same energy consumption level as a 65nm part would. The OCability of the newer manufacturing process will greatly depend on the silicon. If the only difference between the 45nm silicon and 65nm silicon is the optical shrink, I would expect the OC to be around the same as the 65nm, approx. 20% or so. However, if AMD has make slight tweaks to the 45nm silicon, we may see either lower power parts and/or higher OCs. AMD hasn't made too much mention of using the high-K metal gates at 45nm. Also, even though the 45nm parts are based off the K10 architecture, they have stated that they are adding "IPC improvements" to the architecture, so nothing dramatic, but small improvements that should improve the architecture a bit.
post #11 of 14
5/10/08 at 8:01pm