Bulldozers first screens

[informal]

wasnt it 180% the performance of a regular BD "core"?

AMD slide stated 80% of CMP approach.
.

This is CMP approach(of hypothetical BD):


80% of 100 is 80,or 25%(1.25x) less. This is an average number though,so the penalty can be as low as 5% or as high as 40%,we simply don't know. My guess is that usually we will see a 10-20% penalty which will be offset by Turbo mode.This is for pure integer workloads. For fp ones we have over-provisioned FPU which will offer tangible increase in performance and which won't suffer that much in shared mode.

edit: the "throughput advantages ..." line talks exactly about this "penalty". Workload components won't suffer much when module is fully loaded.