Re: Next Big Thing
"Since v4 is only just shipping; this means the rule about tech being obsolete as soon as it is shipped is holding true."
v4 was approved in 2017 and is only just beginning to ship in PC's and the reality is that outside of storage and very high speed interconnects/network adaptors, the requirements aren't there. Realistically, v5 is a similar length of time away from commercially available products such as motherboards and 400Gbps NIC's.
Look outside of the PC market to things like blade servers, network switches and other devices that provide high speed access to shared resources and you will find the real drivers for these speed increases.
Looking at AMD's X570 motherboards which support PCIe 4.x, they provide PCIe4 8x connectors versus the previous generations PCIe3 16x connectors as they don't believe that cards requiring more bandwidth are likely and that the PCIe lanes are better spent elsewhere.
Biting the hand that feeds IT
