Some of the base methods like the activity counters go back several CPU generations, for which the GPUs were later adopters.
Turbo that bites into thermal margin is something AMD has recently caught up with Intel on, although taking a bite out of the device casing's thermal margin may be a further step to buy the chips enough breathing room at 28nm given their competition.
AMD admits the PSP was fused off in earlier silicon, and I share the mindset from the Realworldtech article on Jaguar that the turbo and and advanced power management hardware were mostly there in Jaguar, but not fully bugfixed or validated.
(It's not much of a leap given that AMD presented on Jaguar's expanded power management and clock scaling, and then almost completely failed save for one restricted SKU to make use of it.)
Something like this was probably the case between Trinity and Richland.
It's a tic toc within a chip's life cycle, which must be amortizing development costs or stretching schedules to allow fixed resources to phase in the full breadth of a design.
Turbo that bites into thermal margin is something AMD has recently caught up with Intel on, although taking a bite out of the device casing's thermal margin may be a further step to buy the chips enough breathing room at 28nm given their competition.
AMD admits the PSP was fused off in earlier silicon, and I share the mindset from the Realworldtech article on Jaguar that the turbo and and advanced power management hardware were mostly there in Jaguar, but not fully bugfixed or validated.
(It's not much of a leap given that AMD presented on Jaguar's expanded power management and clock scaling, and then almost completely failed save for one restricted SKU to make use of it.)
Something like this was probably the case between Trinity and Richland.
It's a tic toc within a chip's life cycle, which must be amortizing development costs or stretching schedules to allow fixed resources to phase in the full breadth of a design.