Rpeak values are calculated using the advertised clock rate of the CPU. For the efficiency of the systems you should take into account the Turbo CPU clock rate where it applies
I’m gonna speculate, but I don’t think these systems can run all cpu cores on turbo due to power and thermal limitations and because that wouldn’t be good cost/processing power wise (since you need excessive cooling to do that). Rather, they fire turbo on groups of CPUs, allowing the CPUs to cool down till the sequence wraps around
So, I think rPeak is the processing power achieved when the computer is turboing a large chunk of CPUs
Sorry for my messy writing, I’m a little tired
This seems like a stupid idea at first but it’s actually amazing. They mix high resistance metals into bricks so the bricks can conduct electricity and heat up while doing that. And then they blow air through the holes on the bricks to extract the heat. It leaks about 3% of the heat per day which is absolutely nothing considering it’s cost
I’m gonna drop these papers here. First one is more of a brief intro and the second one is about practicality and logistics of such systems
https://inldigitallibrary.inl.gov/sites/sti/sti/Sort_8882.pdf
https://www.sciencedirect.com/science/article/abs/pii/S0306261919305082