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Intel Xeon 638 server processor, silver metal heatspreader, LGA 4710 socket, green PCB substrate

Intel

Intel Xeon 638 PK8072007104500 16-core 3.2 GHz server processor

SKU CH-QMTW-TVQS9 MPN PK8072007104500

16-core server CPU with 3.2 GHz base clock, 4.8 GHz max turbo, 72 MB L3 cache, DDR5-6400 quad-channel support and 180 W TDP

  • Product nameXeon 638
  • CPU cores16-Core (16P+0E)
  • CPU socketLGA 4710
  • Maximum turbo clock4.8 GHz Intel Turbo Boost Max Technology 3.0 Frequency: 4.8
  • TDP rating180 W
  • Processor codenameGranite Rapids
  • 16 performance cores deliver 3.2 GHz base frequency for consistent server workloads
  • 32 threads via Hyper-Threading boost parallel processing across virtualised environments
  • 72 MB L3 cache reduces latency for data-intensive applications
  • DDR5 6400 MHz quad-channel controller supports up to 2 TB memory capacity
  • PCIe 5.0 with 80 lanes enables high-throughput storage and accelerator connectivity

Server processor for single-socket systems

The Intel Xeon 638 is a 16-core, 32-thread CPU built for single-socket servers. It runs at a 3.2 GHz base frequency with turbo up to 4.8 GHz. The 72 MB L3 cache and Intel 3 process target compute-intensive workloads that fit within one socket.

LGA 4710 socket with 180 W TDP

The LGA 4710 mounting requires a compatible server board and a cooler rated for 180 W base power. Turbo peaks at 216 W, so thermal headroom matters. Quad-channel DDR5 6400 MHz support and 80 PCIe 5.0 lanes demand a platform wired for that bandwidth.

Single-socket scalability limits expansion

Scalability is restricted to 1S only, so multi-socket clusters are not possible. Maximum memory capacity stops at 2 TB across four channels. PCIe 5.0 provides 80 lanes, but total I/O is bounded by the single-socket design. Instruction support includes AVX-512 and AMX for vector and matrix work.

How it compares

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

Price $845.99
Cheaper than about 64% of the 621 comparable items (median $1,561.99).
CPU cores 16-Core (16P+0E)
Lower than about 70% of the 386 comparable items (median 24).
Maximum turbo clock 4.8 GHz Intel Turbo Boost Max Technology 3.0 Frequency: 4.8 GHz Intel Turbo Boost Technology 2.0 Frequency: 4.6 GHz
Higher than about 90% of the 327 comparable items (median 3.9 GHz).

New to this? Buying a processor with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameIntel
Product lineXeon 6
Part numberPK8072007104500
Product nameXeon 638
Performance
Working frequency3.2 GHz
Processor
CPU cores16-Core (16P+0E)
CPU socketLGA 4710
Maximum turbo clock4.8 GHz
Intel Turbo Boost Max Technology 3.0 Frequency: 4.8 GHz
Intel Turbo Boost Technology 2.0 Frequency: 4.6 GHz
TDP rating180 W
Processor codenameGranite Rapids
CPU threads32
Level 3 cache72 MB
64-bit capableYes
Hyper-ThreadingYes
Process nodeIntel 3
Virtualization supportYes
CPU socket scalability1S Only
Maximum PCIe lanes80
Memory
Supported memory speedDDR5 6400 MHz
Max supported memory2 TB
Channel configurationQuad Channel
Ports & slots
PCIe generation5.0
Power
Maximum turbo power216 W
Size & build
Shipping weight0.18 kg
Package size183 × 152 × 81 mm
More details
Multimedia instructionIntel SSE4.1, Intel AMX, Intel SSE4.2, Intel AVX2, Intel AVX-512

Questions about this item

What does PCI Express 5.0 with 80 lanes mean for bandwidth?

The processor exposes 80 lanes of PCIe 5.0, letting each lane run at 32 GT/s for high-throughput storage or accelerator cards.

What cooler clearance and power delivery does the LGA 4710 socket require?

The LGA 4710 socket demands a 180 W TDP cooler with compatible mounting holes and a motherboard VRM rated for 216 W max turbo power.

How is the CPU installed and which step is often missed?

Align the notches, seat the processor gently, close the load plate, then torque the retention screws in a cross pattern to the spec in the motherboard manual.

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