[chesser]

GP:

> > The more depressing observation is that 33.5ECUs are equivalent to 8 cores @ 2.93GHz

You said:

> I don't know where you got 700 MHz from, because by my math, it'd be equivalent to a 1.43 GHz Nehalem core (33.5 / 8 * 2.93)

Transposed.

>>> 8*2.93/33.5

0.69970149253731351

8 cores at 2.93 GHz is 23.44 GHz, which means one compute unit is 700 MHz.

A modern processor can do more per clock than an older processor. In addition, it has a larger cache, faster cache, and a faster memory bus, although on the flip side the memory bus is being shared between more CPUs.