It's quite possible that in the near future, memory expansion will happen mostly over the PCI-e bus. Vendors are moving towards bringing the main ram closer, t

It's quite possible that in the near future, memory expansion will happen mostly over the PCI-e bus. Vendors are moving towards bringing the main ram closer, to increase bandwidth, reduce power and reduce latency. However, this will necessarily mean that the amount of ram a CPU has will be fixed -- there will be no more dimm slots. So what if you need more ram than the market provides on the top-end cpu? Samsung has your back, with CXL.memory. [0] [0] https://www.anandtech.com/show/16670/using-a-pcie-slot-to-install-dram-new-samsung-cxlmem-expansion-module https://www.anandtech.com/show/16670/using-a-pcie-slot-to-in...