- Meta developed Vistara, a custom CXL chip and software, to reuse older memory from decommissioned servers in new servers.
- This addresses memory shortages affecting 40% of Meta's servers by decoupling older DIMMs, which last longer than servers, without significant performance loss.
- The solution is cost-effective amid rising memory prices, with forecasts of doubling prices by 2026 and shortages until 2027.