| taus90 said: I m sorry isnt one of the biggest reason for shrinking chips fabrication process is to bring better performance, better cooling, Lower TDP (for better Clock Rate), Huh didnt knew people were only doing to just save space. Or are you saying MS might have deliberatly choose not take advantage of FinFet design which theoritically doubles the advantage of the similar size node. Either I am learning something new out here or CPU sounds horribly inefficient for a 14nm finfet to be running at 2.3 vs 2.1 PRO (which i assume is 16nm or maybe 28nm based on the heat and noise pro generates). |
It's not quite clear cut for CPUs. The more serial design with few cores doesn't benefit nearly as much from die shrinks and transistor count increases.
See, the 14 nm Core i7 6700k CPU, which is clocked at 4 GHz, versus the 22 nm Core i7 4770k at 3.5 GHz. Clock speed is around 15% higher - but power consumption is some 10% higher as well. If it weren't for the new microarchitecture you could be mislead to believe both are variants of the same chip.
If it weren't the case, CPU clocks could increase like 50-70% every die shrink, for the power consumption of similar designs at the same clocks would have halved. So yes, the PS4 PRO, which is most definitely 16 nm, might be actually consuming more power with the 2.1 GHz Jaguar than the 1.6 GHz standard PS4 CPU.
