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Intel Xeon Gold 6426Y server processor in LGA 4677 package, silver heat-spreader, gold contact pads

Intel

Intel PK8071305120102 Xeon Gold 6426Y 16-core 2.5 GHz server processor

SKU CH-2PEH-3CV7T MPN PK8071305120102

16-core server processor with 32 threads, 37.5 MB L3 cache, 2.5 GHz base clock and 4.1 GHz max turbo frequency, supporting DDR5 4800 memory up to 4 TB across eight channels and PCIe 5.0 with 80 lanes

  • NameXeon Gold 6426Y
  • CPU Socket TypeLGA 4677
  • Core NameSapphire Rapids
  • # of Cores16-Core
  • # of Threads32
  • Operating Frequency2.5 GHz
  • 16 cores and 32 threads handle parallel workloads efficiently
  • 5 GHz base with 4.1 GHz max turbo accelerates single-thread tasks
  • 5 MB L3 cache reduces latency for data-intensive applications
  • DDR5 4800 support across 8 channels delivers high memory bandwidth
  • PCIe 5.0 with up to 80 lanes enables fast I/O expansion

16-core Xeon Gold 6426Y for dual-socket servers

This Intel Xeon Gold 6426Y delivers 16 cores and 32 threads at a 2.5 GHz base frequency with a 4.1 GHz maximum turbo. The 10 nm Sapphire Rapids architecture provides 37.5 MB of L3 cache and supports 64-bit processing for demanding server workloads.

LGA 4677 socket with DDR5 4800 memory controller

The processor fits the LGA 4677 socket and integrates an 8-channel DDR5 4800 memory controller supporting up to 4 TB of system memory. PCI Express 5.0 provides 80 lanes for high-speed storage and networking expansion, while 2S scalability enables dual-processor configurations.

185 W thermal design power requires adequate cooling

With a 185 W TDP and no cooling device included, this CPU demands robust server-grade thermal solutions. The 16 cores handle virtualization, database and compute tasks comfortably, while the 80 PCIe lanes and eight memory channels provide headroom for multi-GPU or high-throughput storage deployments.

Highlights

  • 16 cores and 32 threads handle parallel workloads efficiently
  • 5 GHz base with 4.1 GHz max turbo accelerates single-thread tasks
  • 5 MB L3 cache reduces latency for data-intensive applications
  • DDR5 4800 support across 8 channels delivers high memory bandwidth
  • PCIe 5.0 with up to 80 lanes enables fast I/O expansion

Specifications

BrandIntel
SeriesIntel Xeon Gold
NameXeon Gold 6426Y
ModelPK8071305120102
CPU Socket TypeLGA 4677
Core NameSapphire Rapids
# of Cores16-Core
# of Threads32
Operating Frequency2.5 GHz
Max Turbo Frequency4.1 GHz
L3 Cache37.5MB
64-Bit SupportYes
Manufacturing Tech10 nm
Integrated Memory Controller SpeedDDR5 4800
Maximum Memory Capacity4TB
Memory Channel8 Channel
Virtualization Technology SupportYes
Scalability2S
PCI Express Revision5.0
Max # of PCI Express Lanes80
Multimedia InstructionIntel AMX, Intel SSE4.2, Intel AVX, Intel AVX2, Intel AVX-512
Thermal Design Power185W
Cooling DeviceCooling device not included - Processor Only
Shipping weight0.23 kg
Package size191 × 152 × 83 mm

Questions about this item

Does the 185 W thermal design power require a specific cooler for continuous loads?

The processor has a 185 W TDP and ships without a cooling device, so a compatible LGA 4677 cooler rated for at least that power must be supplied separately.

How loud or hot does the chip run when all 16 cores are fully loaded for hours?

At full load the 16 cores can draw up to 185 W, producing significant heat; actual noise and temperature depend entirely on the cooler and chassis airflow you install.

Which DDR5 memory speed and channel count does the integrated controller support?

The integrated memory controller runs DDR5 at 4800 MT/s across eight channels, allowing up to 4 TB of memory when all channels are populated.

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