➀ Intel unveiled its next-gen 288-core Xeon Clearwater Forest processor at Hot Chips 2025, built on Intel 18A process and 3D packaging technology, significantly outperforming the Sierra Forest generation with enhanced cache, E-cores, and memory bandwidth.
➁ The processor utilizes an all-E-core design for power-efficient multi-threaded workloads, featuring architectural upgrades including a 9-wide decoder (up from 6-wide), doubled execution ports (26 ports), and a 17% IPC uplift in SPECint 2017 benchmarks.
➂ Leveraging 3D stacking (Foveros Direct 3D) and advanced power delivery (BSPDN), Clearwater Forest boasts 1300GB/s DDR5-8000 memory bandwidth per socket and claims a 3.5x rack-level performance-per-watt gain over Sierra, targeting data center power efficiency.