Intel pušta Compute Express Link (CXL) 1.0, novi interkonekcijski protokol koji omogućuje PCIe gen 5.0


Intel has been working on CXL, short for Compute Express Link gen 1, for over four years new. This new interconnect protocol was donated to a new consortium of tech companies for release as a the CXL 1.0 standard. Its protocol layer will pave the way for PCI-Express gen 5.0 to sustain its bandwidth growth target of being twice as fast as PCIe gen 4.0. CXL 1.0 is out to compete with other established PCIe-alternative slot standards such as NVLink from NVIDIA, and InfinityFabric from AMD. It has one killer advantage, though: the CXL 1.0 is pin-compatible and backwards-compatible with PCI-Express, and uses PCIe physical-layer and electrical interface.

To smanjuje troškove nadogradnje hardvera za podatkovne centre. CXL održava koherenciju memorije između memorijskog prostora procesora i memorije na instaliranim uređajima. Konzorcij CXL ili SIG uključuje divove podatkovnih centara i računalstvo u oblaku, uključujući Alibabu, Cisco, DellEMC, Facebook, Google, HPE, Huawei, Microsoft, i naravno Intel. CXL će se bot upotrebljavati kao utično / prorezno sučelje za dodatne kartice i GPU ploče i kao ugrađeno sučelje. Procjenjujemo da je propusnost CXL-a 32 Gbps po traku, odnosno četiri puta veća od PCIe gen 3.0, držeći se u skladu s procjenama rasta propusnosti PCIe gen 5.0.

Source: AnandTech