I've been an Intel fan for many years. Nevertheless, the DMI 3.0 link
on their latest chipsets is forcing a low ceiling on the max bandwidth
of high-performance solid-state storage. I think AMD would do well
to adopt of policy of embracing the NVMe standard, and at a minimum
begin to design AMD CPUs and matching chipsets that support a full
x16 lanes to NVMe RAID controllers with x16 edge connectors. The main
design reason is the symmetry that results from four U.2 ports @ x4 PCIe
lanes (4 @ x4 = x16), and the advantages that come with support for
all modern RAID levels. Remember also that PCIe 4.0's clock will
oscillate at 16 GHz, and upcoming non-volatile DRAM solutions promise
to require much higher upstream bandwidths.
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