Intel Xeon w5-2455X desktop processor 12-core 3.20 GHz 30 MB L3 LGA 4677 BX807132455X

Workstation CPU for LGA 4677 platforms

The Intel Xeon w5-2455X is a 12-core desktop processor built for workstations that need reliable multi-threaded throughput. It runs at a 3.20 GHz base frequency and reaches 4.60 GHz with Intel Turbo Boost Max Technology 3.0. The chip provides 24 threads, 30 MB L3 cache and a 10 nm manufacturing process. It supports DDR5 4800 memory across four channels up to 2 TB with ECC, plus 64 lanes of PCI Express 5.0 for high-bandwidth add-in cards.

Upgrade path from earlier Xeon W or Core models

Moving to this Sapphire Rapids part makes sense when your current platform cannot deliver enough PCIe 5.0 lanes, DDR5 capacity or AVX-512 acceleration for rendering, simulation or virtualization workloads. The 200 W base and 240 W max turbo power envelope requires a motherboard and cooler rated for that thermal load. The jump is worth it if you need the 12P+0E core layout and integrated accelerators such as Intel Data Streaming Accelerator for storage-heavy pipelines.

Verify socket, chipset, memory and cooling before

Confirm your motherboard uses the LGA 4677 socket and a compatible workstation chipset with DDR5 slots wired for four channels. Ensure the BIOS revision lists support for this specific model. Plan for a cooling solution rated at or above 240 W TDP since no cooler is included. Check that your power supply can sustain the 240 W max turbo figure and that the chassis provides adequate airflow for sustained all-core operation.