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

Tom's Hardware
Jun 30, 2026, 7:00 am112 pts
The price of DDR5 memory is setting new highs these days as demand badly outstrips supply. In a bid to save money, Meta is recovering legacy DDR4 memory from used servers and is installing it into new machines using its in-house developed Vistara ASIC that enables it to connect old memory modules to its latest…

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