Overview
- Reports published Monday say Samsung, Micron and SK hynix have scaled back or abandoned internal work on CXL controllers, the specialized chips that route traffic between processors and pooled memory.
- Micron has stopped its in‑house controller R&D and adopted a CXL 3.0 controller from Primemas, which has been sampling controller silicon since mid‑2025.
- SK hynix has terminated its controller project and shifted those engineers to processing‑in‑memory research, a different approach that puts compute inside memory chips.
- Samsung will keep an experimental controller effort internally but intends to source commercial controllers from outside partners while continuing to push CXL memory modules.
- Vendors are still demonstrating CXL memory modules and company tests show capacity gains and promising inference results, but server platform support, firmware and memory‑management software must catch up before volume deployments arrive in 2027–2028.