Intel Xeon Gold 6426Y Processor

Intel Xeon Gold 6426Y — 16 cores and 32 threads at 2.5 GHz base / 4.1 GHz turbo, 37.5 MB cache, 185 W TDP, FCLGA4677. Supplied from stock with a 1-year warranty.

A 16-core Gold Y-series with dual-socket scalability

The 6426Y belongs to the 4th Gen Xeon Scalable (Sapphire Rapids) family, launched in Q1 2023 on the Intel 7 process. It pairs 16 Performance-cores at 2.5 GHz all-core with a 4.1 GHz turbo ceiling, 37.5 MB of cache and a 185 W envelope. As a Gold-series Y SKU it is rated 2S — validated for platforms with up to two sockets — which covers single- and dual-socket servers alike. Speed Select Technology adds four levers: Performance Profile can fold the die down to 12 cores at 2.5 GHz or 4 cores at 3.3 GHz (dropping to 165 W then 150 W), Core Power splits it into 4 high-priority cores at 2.7 GHz and 12 low-priority cores, Turbo Frequency can lift the turbo ceiling on chosen cores, and Base Frequency raises the all-core floor.

The platform: 8 channels of DDR5-4800 at 1 DPC (DDR5-4400 at 2 DPC, up to 4 TB per socket), PCIe 5.0 with 80 lanes, and 3 UPI links at 16 GT/s to feed multi-socket topologies. Its accelerator quota ships pre-activated — one DSA device by default, plus AMX and DL Boost, with Intel QAT available as software acceleration.

Technical specifications

Servers that commonly take this processor

The 6426Y uses the FCLGA4677 (Socket E) package and is validated for 2-socket 4th Gen Xeon Scalable platforms. Typical systems that run it include:

• Dell PowerEdge R660 / R760 / R6625 / R7625
• HPE ProLiant DL380 Gen11 / DL360 Gen11 / DL384 Gen11
• Lenovo ThinkSystem SR650 V3 / SR630 V3 / ST650 V3
• Inspur NF5280M6-class and other LGA4677 rack platforms

Most 5th Gen (Emerald Rapids) boards also accept it. Check that the chassis thermal design is rated for the 185 W TDP and that the BIOS is current, especially if the server originally shipped with a lower-power SKU.

How it compares across generations

Moving from Ice Lake to Sapphire Rapids roughly doubles the cache across the Gold range and switches the platform to DDR5 and PCIe 5.0; the 6426Y adds AMX for inference workloads and an on-die DSA accelerator its predecessors could not offer, plus Speed Select Performance Profile.

How each processor is tested before it ships

1. Visual inspection of the heat spreader, capacitors and substrate on arrival.
2. Thermal paste residue cleaned from the IHS; socket contact pads checked under magnification.
3. sSpec marking (SRMGF) verified against the order line before testing.
4. Full-core load test on an LGA4677 diagnostic board, confirming rated clocks and cache.
5. Re-run of the memory controller stress pass, then anti-static packing for dispatch.

Warranty and lead time

Every 6426Y carries a 1-year warranty covering defects in workmanship and function; a verified faulty unit is replaced or refunded with return shipping covered. New units come in Intel tray packaging (order code PK8071305120102); tested pull units are labelled as such and priced separately. In-stock units typically ship within 2-3 business days after payment confirmation.

Purchasing and volume enquiries

Pricing is quotation-based rather than fixed. Send the quantity, condition preference (new or tested) and delivery destination, and we reply with a firm quote including current stock and lead time. Volume and project pricing is available for multi-unit orders.