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Gold-coloured square server processor with gold contact pads on the underside, silver heat spreader on top, no cooler included

Intel

Intel Xeon Gold 6238R 28-core 2.20 GHz server processor

SKU CH-CDJG-3C4CX

28-core, 56-thread server CPU with 38.5 MB L3 cache, 2.20 GHz base clock and 4.00 GHz max turbo on LGA 3647 socket

  • CPU cores28-Core
  • CPU socketLGA 3647
  • Maximum turbo clock4 GHz
  • TDP rating165 W
  • Processor codenameCascade Lake
  • CPU threads56
  • 28 cores and 56 threads handle heavy multi-threaded workloads
  • 5 MB L3 cache keeps large data sets close to the cores
  • Turbo frequency up to 4.00 GHz accelerates bursty tasks
  • 4 GT/s QPI links sockets for scalable performance
  • 165 W TDP fits standard server thermal envelopes

28-core Xeon Gold 6238R server processor

The Intel Xeon Gold 6238R is a 28-core server processor built on the Cascade Lake architecture. It delivers 56 threads with a base frequency of 2.20 GHz and a maximum turbo frequency of 4.00 GHz. This CPU is designed for multi-socket server platforms requiring high core density and 64-bit compute capability.

LGA 3647 socket compatibility

This processor requires a motherboard with an LGA 3647 socket, also referenced as FCLGA3647. It supports six memory channels with a maximum capacity of 1 TB and communicates via a 10.4 GT/s QPI link. PCI Express 3.0 lanes provide I/O connectivity for storage and networking expansion cards.

No cooler included in the package

The processor is sold as a tray unit without a cooling device. System integrators must source a compatible heatsink or liquid cooling solution rated for the 165 W thermal design power. Virtualization technology support is enabled for hypervisor deployments.

How it compares

Measured against everything we stock in Server Processors, at today’s prices. Recalculated every night.

Price $198.99
Cheaper than about 90% of the 621 comparable items (median $1,561.99).
CPU cores 28-Core
Higher than about 55% of the 386 comparable items (median 24).
Maximum turbo clock 4 GHz
Higher than about 63% of the 327 comparable items (median 3.9 GHz).

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Specifications

Product
Brand nameIntel
Product lineIntel Xeon Gold
Part numberSRGZ9
Performance
Working frequency2.8 GHz
Processor
CPU cores28-Core
CPU socketLGA 3647
Maximum turbo clock4 GHz
TDP rating165 W
Processor codenameCascade Lake
CPU threads56
Level 3 cache38.5 MB
64-bit capableYes
Hyper-ThreadingYes
Virtualization supportYes
Memory
Max supported memory1 TB
Channel configuration6 Channel
Ports & slots
PCIe generation3.0
In the box
Included coolerNot included - Processor Only
More details
QPI10.4 GT/s

Questions about this item

What does the 2.20 GHz base frequency mean once the Xeon 6238R is installed in a server?

The 2.20 GHz base clock is the guaranteed minimum speed across all 28 cores under sustained load, so multi-threaded workloads run at least at this frequency.

What does the 10.4 GT/s QPI link cap in practice for the Xeon 6238R?

The 10.4 GT/s QPI interconnect limits inter-socket bandwidth to that rate, so dual-socket traffic cannot exceed this throughput.

What does the Xeon 6238R physically need to fit in a server chassis?

It requires an LGA 3647 socket and a cooler rated for 165 W TDP, as no cooling device is included with the processor.

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