Intel Xeon Gold 6338T Processor

Intel Xeon Gold 6338T — 24 cores and 48 threads at 2.1 GHz base / 3.4 GHz turbo, 36 MB cache, 165 W TDP, FCLGA4189. Supplied from stock with a 1-year warranty.

The efficiency-tuned 24-core Gold of the Ice Lake stack

The 6338T belongs to the 3rd Gen Xeon Scalable (Ice Lake-SP) family, launched in Q2 2021 on a 10 nm process. It pairs 24 cores / 48 threads with a 2.1 GHz base and a 3.4 GHz turbo ceiling on a 165 W envelope - the lowest TDP of this batch’s 24-core-and-larger parts - plus PCIe 4.0 with 64 lanes. The chip is rated 2S (two sockets) with three UPI links at 11.2 GT/s, and it runs DDR4-3200 across eight channels with a 6 TB per-socket ceiling - Intel Optane persistent memory 200 series is supported alongside DDR4. Intel Speed Select comes as Core Power, Turbo Frequency and Base Frequency variants, with a high-priority / low-priority partition of 8 cores at 2.3 GHz and 16 cores at 1.9 GHz - a large pool of thrifty background cores around a small fast core group. Embedded Options are Available, making the part usable in long-life appliances.

Security and acceleration are Ice Lake staples: AVX-512 with two FMA units, DL Boost, TSX-NI and VMD, Intel Crypto Acceleration, Resource Director Technology and Speed Shift, plus Total Memory Encryption, Run Sure reliability and Platform Firmware Resilience. SGX is supported with Intel SPS and a 64 GB enclave page cache. Thermal rating is TCASE 87 °C - the highest of this batch, allowing the hottest acceptable case temperature and the most forgiving airflow envelope - in a 77.5 mm × 56.5 mm package.

Technical specifications

Servers that commonly take this processor

The 6338T fits any FCLGA4189 (Whitley) platform whose BIOS supports 3rd Gen Xeon Scalable parts, in single- or dual-CPU two-socket systems. Typical systems that run it include:

• Dell PowerEdge R750 / R650
• HPE ProLiant DL380 Gen10 Plus / DL360 Gen10 Plus
• Lenovo ThinkSystem SR650 V2 / SR630 V2
• Two-socket high-density, edge and storage chassis built around the Whitley platform

Because the part is rated 2S with three UPI links, it can pair with a second 6338T in dual-socket nodes - check that the platform BIOS and the second CPU stepping are compatible before ordering. The 165 W per-socket draw keeps dual-CPU nodes under 330 W of package power, and the 87 °C TCASE ceiling gives dense chassis the most thermal headroom of this batch.

How it compares across generations

Against its standard-bin sibling, the Gold 6338, the 6338T trades 8 cores and 12 MB of cache for a 100 MHz higher base (2.1 vs 2.0 GHz), a 200 MHz higher turbo (3.4 vs 3.2 GHz) and 40 W less (165 vs 205 W). Against the Gold 6342 it keeps the same 24-core / 48-thread / 36 MB layout but gives up 700 MHz at base and 100 MHz at turbo for 65 W less. Against the network-optimised 6338N it gives up 8 cores, 12 MB, 100 MHz at base and 100 MHz at turbo for 20 W less while keeping the full DDR4-3200 memory speed. The T suffix marks the thermally flexible bin: with the lowest TDP of this batch’s 24-core-and-larger parts and the highest TCASE rating of this batch, it is aimed at dense, airflow-limited chassis where the 6338 or 6342 would run too hot.

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 (SRKXF) verified against the order line before testing.
4. Full-core load test on an LGA4189 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 6338T 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 CD8068904658201); 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.