Meta fights soaring hardware costs by reusing old DDR4 server memory in new DDR5-only servers — custom CXL 2.0 chip marries legacy DDR4-2400 with cutting-edge DDR5-6400

https://www.tomshardware.com/pc-components/dram/meta-fights-soaring-hardware-costs-by-reusing-old-ddr4-server-memory-in-new-ddr5-only-servers-custom-cxl-2-0-chip-marries-legacy-ddr4-2400-with-cutting-edge-ddr5-6400