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sp332
on April 5, 2019
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AMD EPYC Rome 2P Will Have 128-160 PCIe Gen4 Lanes...
Current Epyc servers have PCIe 3.0 connections. They could use half as many PCIe 4.0 connections and get the same bandwidth.
masklinn
on April 5, 2019
[–]
Yeah but realistically NVMe will remain on 4x and you'll get faster drives. It allows for double the number of ports in NICs though, which is really useful for 10+Gb (and especially 100)
c2h5oh
on April 5, 2019
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I can imagine PCIE 4.0 cards with PCIE 3.0 NVMe interfaces on them - 8 NVMe drives each using 4 PCIE 3.0 lanes in a single PCIE 3.0 x16 slot
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