Devices · 1h ago
Meta reuses old DDR4 memory in new servers with custom CXL chip
Meta developed a custom Vistara CXL 2.0 memory expander to pair legacy DDR4-2400 RAM with new servers running AMD EPYC 'Turin' processors. The approach aims to cut hardware costs by reusing existing memory inventory. Meta's custom chip bridges DDR4 and DDR5-6400 memory in DDR5-only server platforms.
Meridian48 take
This is a clever cost-saving hack, but it may signal that DDR5 supply or pricing remains a challenge for hyperscalers.
Read the full reporting
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
metamemory-expansion