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Intel Xeon Gold 6438M server CPU in LGA 4677 socket package

Intel

Intel PK8071305122301 Xeon Gold 6438M 32-core server processor

SKU CH-8NVS-095ET MPN PK8071305122301

32-core Xeon server processor running at 2.2 GHz with 60 MB L3 cache, 64 threads, 80 PCIe 5.0 lanes and DDR5-4800 support in an LGA 4677 socket

  • Product nameXeon Gold 6438M
  • CPU cores32-Core
  • CPU socketLGA 4677
  • Maximum turbo clock3.9 GHz
  • TDP rating205 W
  • Processor codenameSapphire Rapids
  • 32 cores and 64 threads handle heavy parallel workloads
  • 2 GHz base with 3.9 GHz max turbo frequency for responsive performance
  • 60 MB L3 cache reduces latency for large data sets
  • DDR5 4800 eight-channel memory controller supports up to 4 TB capacity
  • PCIe 5.0 with 80 lanes enables high-speed I/O expansion

Xeon Gold 6438M 32-core server processor

The Intel Xeon Gold 6438M is a 32-core, 64-thread server processor built on 10 nm Sapphire Rapids architecture. It operates at a 2.2 GHz base frequency with a 3.9 GHz maximum turbo frequency and includes 60 MB of L3 cache. The CPU fits the LGA 4677 socket and has a 205 W thermal design power.

Suited for dual-socket DDR5 platforms needing 80

This processor supports up to 4 TB of DDR5-4800 memory across eight channels and scales to two sockets, making it appropriate for memory-intensive workloads and high I/O throughput. Builders targeting single-socket boards, lower core counts, or platforms limited to fewer memory channels or PCIe lanes should consider other options.

LGA 4677 socket and 205 W TDP define platform

The processor requires a motherboard with the LGA 4677 socket and cooling capable of dissipating 205 W. Memory must be DDR5-4800, and the platform must deliver eight memory channels and up to 80 PCIe 5.0 lanes to utilise the full specification.

How it compares

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

Price $2,800.99
Pricier than about 71% of the 621 comparable items (median $1,561.99).
CPU cores 32-Core
Higher than about 60% of the 386 comparable items (median 24).
Maximum turbo clock 3.9 GHz
Typical for this category: the median of 327 items is 3.9 GHz.

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Specifications

Product
Brand nameIntel
Product lineIntel Xeon Gold
Model namePK8071305122301
Product nameXeon Gold 6438M
Performance
Working frequency2.2 GHz
Processor
CPU cores32-Core
CPU socketLGA 4677
Maximum turbo clock3.9 GHz
TDP rating205 W
Processor codenameSapphire Rapids
CPU threads64
Level 3 cache60 MB
64-bit capableYes
Process node10 nm
Virtualization supportYes
CPU socket scalability2S
Maximum PCIe lanes80
Memory
Supported memory speedDDR5 4800
Max supported memory4 TB
Channel configuration8 Channel
Ports & slots
PCIe generation5.0
Size & build
Shipping weight0.91 kg
Package size25 × 25 × 25 mm
In the box
Included coolerNot included - Processor Only
More details
Multimedia instructionIntel AMX, Intel SSE4.2, Intel AVX, Intel AVX2, Intel AVX-512

Questions about this item

How does the 2.2 GHz base clock behave once the Xeon Gold 6438M is installed in a dual-socket server?

The processor runs at 2.2 GHz across all 32 cores under sustained load and can lift individual cores to 3.9 GHz when thermal headroom allows.

What does the PCIe 5.0 interface with 80 lanes cap in real-world I/O?

The 80 lanes of PCIe 5.0 provide up to 32 GT/s per lane for accelerators, storage controllers and networking cards.

What physical clearance does the LGA 4677 socket and 205 W TDP demand in the chassis?

The FCLGA4677 package requires a compatible server board and a cooler rated for at least 205 W of heat dissipation.

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