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7 years ago it was doable to build similar desktop at similar price from refurbished server (4x6core Opteron CPU, 128GB DDR2 ECC RAM). It took about 1KW and was loud, but great complement for performance testing.

BTW I seen 64GB DDR4 sticks on amazon...

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The memory access performance on ThreadRipper (and current Ryzen/Epyc) is much better than anything prior to this generation for workstation loads. Not that the shared I/O controller is without cost, only that it tends to average out better in most cases where multiple cores across chips are in use together.

Just got my 3950X w/ 64gb ram, not sure that I'd be able to practically use any more compute than this for what I play with, which is mostly multiple back-ends and some container orchestration for local dev and occasionally video re-encodes (BR-Ripping for NAS).

Some think $4k for this CPU is too much... considering the shear performance that you can get these days for under $10K there's never been a better time to build or buy a computer. My only regret is wasting time and money on aRGB that I cannot configure in Linux.

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