TechXchange: CXL Standards and Architecture

Compute Express Link (CXL) is a cache-coherent interconnect based on PCI Express (PCIe). The articles in this TechXchange address the architecture and standards. CXL can be used for a range of applications include memory expansion.

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Casting a Light on CXL 3

This year’s Hot Chips event featured a tutorial on the fast-rising CXL standard and its latest iteration—CXL 3.

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What’s the Difference Between CXL 1.1 and CXL 2.0?

Compute Express Link is a high-speed interconnect offering coherency and memory semantics using high-bandwidth, low-latency connectivity between host processor and devices such...

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CXL: Coherency, Memory, and I/O Semantics on PCIe Infrastructure

Compute Express Link is a cache-coherent interconnect for processors, memory expansion, and accelerators that maintains a unified coherent memory space between the CPU and any...

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What’s the Difference Between OpenCAPI, CXL, and Gen-Z?

Memory infrastructure gets a boost: OpenCAPI and its OMI subset, along with the CXL, ratchet up performance to address near-memory domain bottlenecks, while Gen-Z focuses on rack...