It costs more to move 2 bytes into the CPU than to actually add them. As you go bigger, you spend an increasingly larger amount of time and energy moving data as opposed to actually calculating things.
Anandtech numbers showed 50-89% of total power consumption for the 7601 being used for Infinity Fabric. With 89w remaining spread among 32 cores, that's a mere 2.78w per core or 1.39w per thread at an all-core turbo of 2.7GHz.
Anandtech numbers showed 50-89% of total power consumption for the 7601 being used for Infinity Fabric. With 89w remaining spread among 32 cores, that's a mere 2.78w per core or 1.39w per thread at an all-core turbo of 2.7GHz.
Oh, I'd note that the 7601 is a 14nm Zen 1 part.
https://www.anandtech.com/show/13124/the-amd-threadripper-29...!