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A comment on AMD EPYC “Rome” Server Processors to Feature 8 to 64 Cores. Parent comment

Re:AMD EPYC “Rome” Server Processors to Feature 8 to 64 Cores by kllrnohj on Thursday June 20, 2019 @01:08PM (#20234923)
I think it'd really only be surprising if the Mac Pro ignored these chips when they were already available. At this point, though, the Mac Pro is shipping before Rome is available. The timing is just off. Current Xeons are faster than current Epyc's on average, so the choice today makes sense. Particularly if Apple wants to avoid NUMA in these machines. It wouldn't be unreasonable for a Mac Pro refresh in 2 years to switch to Epyc, though, if current trends continue to hold.
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Re:AMD EPYC “Rome” Server Processors to Feature 8 to 64 Cores by juergbi on Thursday June 20, 2019 @03:16PM (#20236281)
No, Rome is expected to officially launch in early Q3 (it's already shipping to hyperscalers) and the Mac Pro is expected to ship in September.

However, Zen 2 Threadripper would likely be a better fit for a workstation such as Mac Pro as it will (most likely) have higher clock speeds. The current Threadripper lineup doesn't support more than 256 GB RAM, though. I don't know whether the new Threadripper will support RDIMM/LRDIMM to compete with Xeon-W on memory capacity.

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Re:AMD EPYC “Rome” Server Processors to Feature 8 to 64 Cores by rbanffy on Thursday June 20, 2019 @02:56PM (#20236057)
The Mac Pro uses the LGA3647 socket, which I assume will give it some headroom for incremental upgrades in the next few years before a major overhaul is due. Intel already offers 112-thread part for that socket.
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Re:AMD EPYC “Rome” Server Processors to Feature 8 to 64 Cores by juergbi on Thursday June 20, 2019 @03:21PM (#20236333)
No, the 56C/112T Intel Xeon Platinum 9282 is a BGA part, it's not socketed. You can buy this niche product only as part of a server with liquid cooling.

And the successors to Cascade Lake seem to switch to the LGA4189 socket to support 8 memory channels (Cooper Lake and Ice Lake), so I wouldn't expect any upgrades on LGA3647.

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Re:AMD EPYC “Rome” Server Processors to Feature 8 to 64 Cores by rbanffy on Thursday June 20, 2019 @07:41PM (#20238570)
You are right about the socket - ark.intel.com doesn't mention the socket for the two top-end parts. All others use the previous one.

The good news is that the next generation Mac Pro will have a ton of extra memory bandwidth.

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Re:AMD EPYC “Rome” Server Processors to Feature 8 to 64 Cores by jlawer on Thursday June 20, 2019 @09:36PM (#20239133)
The bad news is that the next generation Mac Pro will be released in 5+ years from now
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