A server hardware team installs a stacked-memory accelerator module beside CXL expansion hardware in an open server chassis, with blue workshop lighting, cooling plates, and organised cables.Analysis
Hardware7 Sept 2026

HBM and CXL are reshaping the memory hierarchy

HBM and CXL address different parts of a memory-system problem. HBM brings tightly coupled, wide-interface memory near compute; CXL defines coherent links and fabric capabilities for attached memory and devices.

A photonics engineer aligns delicate fibre probes over a silicon photonics wafer on an optical test station, with violet clean-laboratory light, precision stages, and softly blurred instruments.Analysis
Hardware7 Sept 2026

Silicon photonics targets the data-movement bottleneck

Silicon photonics integrates optical functions with semiconductor manufacturing techniques. Its promise is not that light replaces every electrical path, but that selected communication links can move more information with different bandwidth, reach, and energy trade-offs.