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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

  • NameXeon 638
  • CPU Socket TypeLGA 4710
  • Core NameGranite Rapids
  • # of Cores16-Core (16P+0E)
  • # of Threads32
  • Operating Frequency3.2 GHz
  • 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.

Highlights

  • 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

Specifications

BrandIntel
SeriesXeon 6
NameXeon 638
Part NumberPK8072007104500
CPU Socket TypeLGA 4710
Core NameGranite Rapids
# of Cores16-Core (16P+0E)
# of Threads32
Operating Frequency3.2 GHz
Max Turbo FrequencyMax Turbo Frequency: 4.8 GHz
Intel Turbo Boost Max Technology 3.0 Frequency: 4.8 GHz
Intel Turbo Boost Technology 2.0 Frequency: 4.6 GHz
L3 Cache72MB
64-Bit SupportYes
Hyper-Threading SupportYes
Manufacturing TechIntel 3
Integrated Memory Controller SpeedDDR5 6400MHz
Maximum Memory Capacity2TB
Memory ChannelQuad Channel
Virtualization Technology SupportYes
Scalability1S Only
PCI Express Revision5.0
Max # of PCI Express Lanes80
Multimedia InstructionIntel SSE4.1, Intel AMX, Intel SSE4.2, Intel AVX2, Intel AVX-512
Thermal Design Power180W
Max Turbo Power216W
Shipping weight0.18 kg
Package size183 × 152 × 81 mm

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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