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Here’s your chance to own a decommissioned US government supercomputer
(arstechnica.com)
This is a most excellent place for technology news and articles.
It's all Broadwell Xeons. Sure, there's 8000 of 'em, but after you factor in purchase price, moving and storage costs, time spent parting out nodes, shipping costs, etc... I think you'd have a hard time breaking even, and for an end user you can get like 4x the FLOPS per socket at half the power consumption with current server CPUs.