nehalem with its cache and superior architecture , clock for clock is at faster than athlon 2 if you look at max cpu usage apps .
the clock rates and especially overclockability of westmere is THE thing to watch out when they descend from heaven in january . i have an i5 750 , wont be buying them but i still hope 32nm benefits overclockability a lot .
they will annihilate many , many ! other processors , in apps or games not taking advantage of all 4 cores .