The US government is auctioning the Cheyenne supercomputer: 145,152 CPU cores and 313 TB of RAM [TechSpot]
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Cheyenne is driven by 8,064 Intel Xeon E5-2697v4 processors. Each Broadwell-class chip is built on a 14nm process and features 18 cores / 36 threads with a base frequency of 2.3 GHz that can Turbo Boost up to 3.6 GHz. In total, that works out to a staggering 145,152 processing cores.