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Silver square LGA 4677 server CPU with gold contact pads and green substrate visible

Intel

Intel Xeon W5-2555X BX807132555X server processor

SKU CH-A3QD-1CCDJ MPN BX807132555X

14-core Xeon server processor with 3.3 GHz base clock, 4.8 GHz max turbo, 33.75 MB L3 cache, DDR5-4800 quad-channel support up to 2 TB, 64 PCIe 5.0 lanes and 210 W TDP

  • NameXeon W5-2555X
  • CPU Socket TypeLGA 4677
  • Core NameSapphire Rapids
  • # of Cores14-Core
  • # of Threads28
  • Operating Frequency3.3 GHz
  • 14 cores and 28 threads handle parallel workloads efficiently
  • 3 GHz base clock with 4.8 GHz max turbo accelerates single-thread tasks
  • 75 MB L3 cache reduces latency for data-intensive applications
  • Quad-channel DDR5 4800 support enables up to 2 TB memory capacity
  • PCIe 5.0 with 64 lanes provides high-bandwidth I/O for accelerators and storage

Xeon W5-2555X 14-core server processor

The Intel Xeon W5-2555X is a 14-core, 28-thread CPU built for single-socket workstations. It runs at a 3.3 GHz base frequency and reaches 4.8 GHz with Intel Turbo Boost Max Technology 3.0. The processor includes 33.75 MB of L3 cache and a quad-channel DDR5 4800 memory controller supporting up to 2 TB of RAM.

Suited for single-socket workstations needing high

This processor fits builders targeting rendering, simulation or virtualization workloads on a single LGA 4677 platform with PCIe 5.0 and 64 lanes. Buyers who need multi-socket scalability or a lower thermal envelope should evaluate other options because this part is rated for 210 W base and 252 W max turbo power with no cooler included.

DDR5 4800 quad-channel memory controller decides

The integrated controller only operates with DDR5 4800 memory in a four-channel topology, so the motherboard and DIMMs must match that exact specification. Systems built around a different memory generation or channel count cannot use this processor.

Highlights

  • 14 cores and 28 threads handle parallel workloads efficiently
  • 3 GHz base clock with 4.8 GHz max turbo accelerates single-thread tasks
  • 75 MB L3 cache reduces latency for data-intensive applications
  • Quad-channel DDR5 4800 support enables up to 2 TB memory capacity
  • PCIe 5.0 with 64 lanes provides high-bandwidth I/O for accelerators and storage

Specifications

BrandIntel
SeriesXeon
NameXeon W5-2555X
ModelBX807132555X
CPU Socket TypeLGA 4677
Core NameSapphire Rapids
# of Cores14-Core
# of Threads28
Operating Frequency3.3 GHz
Max Turbo FrequencyIntel Turbo Boost Max Technology 3.0 Frequency: 4.8 GHz
Intel Turbo Boost Technology Maximum Single Core Turbo Frequency: 4.6 GHz
L3 Cache33.75MB
64-Bit SupportYes
Hyper-Threading SupportYes
Manufacturing Tech10 nm
Integrated Memory Controller SpeedDDR5 4800
Maximum Memory Capacity2TB
Memory ChannelQuad Channel
Virtualization Technology SupportYes
Scalability1S Only
PCI Express Revision5.0
Max # of PCI Express Lanes64
Thermal Design Power210W
Max Turbo Power252W
Cooling DeviceCooling device not included - Processor Only
Shipping weight0.23 kg
Package size137 × 112 × 44 mm

Questions about this item

What motherboard socket and DDR5 speed are required for the Xeon W5-2555X?

The processor fits an LGA 4677 socket and its integrated memory controller runs DDR5 at 4800 MT/s.

Will my existing PCIe 3.0 add-in cards operate with this CPU?

The chip provides 64 lanes of PCIe 5.0, which are backward compatible with PCIe 3.0 devices at their native speeds.

How can I confirm the 14-core, 28-thread processor is running at its rated 3.3 GHz base and 4.8 GHz max turbo?

Monitor core clocks under load with a hardware utility; sustained all-core operation should sit at 3.3 GHz while single-core peaks reach 4.8 GHz.

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