Originally Posted by hmurchison
So are you saying that a Microprocessor from the same family running at the same frequency will yield a performance increase strictly from a processes shrink?
No. I didn't write that. What I wrote is equivalent to: a microprocessor from the same family running at the same frequency will yield a performance increase per watt
strictly from a process shrink -- and the performance increase per watt
will be dramatic.
Given that laptops are limited in the maximum TDP they support, to maximize performance one takes the fastest processor within the TDP constraint. If that constraint is, say, 35W then a 35W 32nm processor is going to run circles around a 35W 45nm processor using the same microarchitecture. That is true regardless of the number of cores because adding cores, at any given technology level, requires slowing the clock to maintain TDP.