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A silver rectangular processor with gold contact pads on the underside, no cooler included

Intel

Intel Xeon 6781P 80-core desktop processor PK8072006270200

SKU CH-GFY7-8BNXH MPN PK8072006270200

80-core desktop processor with 160 threads, 3.8 GHz max turbo and 336 MB L3 cache for multi-threaded workloads

  • Processors TypeDesktop
  • NameXeon 6781P
  • CPU Socket TypeLGA 4710
  • Core NameGranite Rapids
  • # of Cores80-Core
  • # of Threads160-Threads
  • 80 cores and 160 threads handle massive parallel workloads
  • 8 GHz max turbo frequency accelerates single-thread performance
  • 336 MB L3 cache reduces latency for large datasets
  • Eight-channel DDR5 and MRDIMM support up to 4 TB memory
  • 136 PCIe 5.0 lanes provide extensive I/O connectivity

Intel Xeon 6781P 80-core desktop processor

The Intel Xeon 6781P is an 80-core desktop processor built on the Granite Rapids architecture for LGA 4710 platforms. It delivers 160 threads with a 2.0 GHz base frequency and a 3.8 GHz max turbo frequency, supported by 336 MB of L3 cache. This CPU targets high-throughput workloads such as virtualisation, database serving and compute-intensive analytics on single-socket systems.

Upgrade from lower-core Xeon or workstation CPUs

Moving to this 80-core part makes sense when thread count and memory bandwidth become the primary bottlenecks. The jump is worth it for workloads that scale across 160 threads and can exploit eight channels of DDR5 at 6400 MT/s or MRDIMM at 8800 MT/s. Systems limited by PCIe lane count also benefit from the 136 lanes of PCIe 5.0 connectivity.

4 TB memory capacity with eight-channel bandwidth

The integrated memory controller supports up to 4 TB of ECC DDR5 or MRDIMM across eight channels, providing ample headroom for large in-memory databases and virtualised environments. Bandwidth scales with MRDIMM at 8800 MT/s for memory-bound kernels. The 350 W TDP and lack of included cooling mean thermal infrastructure must handle sustained 3.2 GHz all-core turbo operation.

Highlights

  • 80 cores and 160 threads handle massive parallel workloads
  • 8 GHz max turbo frequency accelerates single-thread performance
  • 336 MB L3 cache reduces latency for large datasets
  • Eight-channel DDR5 and MRDIMM support up to 4 TB memory
  • 136 PCIe 5.0 lanes provide extensive I/O connectivity

Specifications

BrandIntel
Processors TypeDesktop
SeriesXeon
NameXeon 6781P
ModelPK8072006270200
CPU Socket TypeLGA 4710
Core NameGranite Rapids
# of Cores80-Core
# of Threads160-Threads
Operating Frequency2.0 GHz
Max Turbo FrequencyMax Turbo Frequency: 3.8 GHz
All Core Turbo Frequency: 3.2 GHz
L3 Cache336MB
Manufacturing TechIntel 3
Instruction Set64-Bit
Integrated Memory Controller Speed6400 MHz
Memory TypesDDR5(6400MT/s), MRDIMM(8800MT/s)
Memory Channel8
Max Memory Size4TB
ECC MemorySupported
Virtualization Technology SupportYes
Scalability1S Only
PCI Express Revision5.0
Max Number of PCI Express Lanes136
Multimedia InstructionIntel AMX, Intel SSE4.2, Intel AVX, Intel AVX2, Intel AVX-512
Thermal Design Power350W
Cooling DeviceCooling device not included - Processor Only
Advanced TechnologiesIntel QuickAssist Technology (QAT): 3 default devices
Intel Dynamic Load Balancer (DLB): 3 default devices
Intel Data Streaming Accelerator (DSA): 3 default devices
Intel In-memory Analytics Accelerator (IAA): 3 default devices
Intel Advanced Matrix Extensions (AMX): Yes
Intel Speed Select Technology - Core Power: Yes
Intel Speed Select Technology - Turbo Frequency: Yes
Intel Deep Learning Boost (Intel DL Boost) on CPU: Yes
Intel Speed Select Technology - Performance Profile: Yes
Intel Speed Select Technology - Base Frequency: Yes
High Priority Cores: 30
High Priority Core Frequency:
Security & ReliabilityIntel Trust Domain Extensions (Intel TDX): Yes
Intel Secure Key: Yes
Intel Crypto Acceleration: Yes
Intel QuickAssist Software Acceleration: Yes
Intel Platform Firmware Resilience Support: Yes
Intel Control-Flow Enforcement Technology: Yes
Intel Total Memory Encryption - Multi Key: Yes
MK-TME Total: 1024
Intel Total Memory Encryption: Yes
Intel AES New Instructions: Yes
Intel Software Guard Extensions (Intel SGX): Yes
Default Maximum Enclave Page Cache (EPC) Size for Intel SGX: 128 GB
Intel OS Guard: Yes
Intel Trusted Execution Technology: Yes
Execute Disable Bit: Yes
Intel Boot Guar
Shipping weight0.68 kg
Package size152 × 127 × 5 mm

Questions about this item

What LGA 4710 socket and 350 W TDP cooler clearance does the Xeon 6781P require?

The processor fits an LGA 4710 socket and has a 350 W thermal design power, so the cooler must be rated for at least that heat load and clear the socket's mechanical keep-out zone.

How is the Xeon 6781P installed in the LGA 4710 socket, and which step is most often missed?

Align the gold triangle on the processor with the socket marker, lower it gently without forcing, close the load plate, then torque the four captive screws in a cross pattern to the board-maker's specified value — skipping the cross-pattern torque is the common error.

When will the thermal interface material on the Xeon 6781P need replacement?

Replace the paste whenever the cooler is removed or if temperatures rise above normal after several years of continuous 350 W operation.

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