The Sandy Bridge Preview (Anand)

[terrace215]

BTW, IPC gains are higher than thought.

In addition to the L3 cache being smaller on Sandy, the other Westmere comparison parts were allowed to Turbo (!), so it is not clock-for-clock at all, particularly on single-threaded workloads.

The i7 880 can hit 3.73GHz, 20% higher clock than the non-turboing 3.1GHz Sandy.