when people look at perf/mm2, are they counting all that extra space that we never understood, or are they only using the modules space?

i can blow all your minds and say that Thuban and BD and Deneb all suck compared to Propus in perf/mm2. L3 for amd takes up a huge space and offers only a minor increase in perf. however due to perf/watt, its a fine addition. so they eat a smaller marginal profit, to have a higher performing chip.

from newegg
Athlon 640 (3ghz no L3) 100$
Phenom x4 945 (3ghz and L3) 110$ (but its out of stock so it might be a little off)
Phenom x4 960T (3ghz, L3 and turbo) 125$

the Athlon kills them all in price/mm2 and perf/mm2, yet 2 more products that are slightly faster exist.