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Intel Xeon 6 6521P server processor in green ceramic package with gold contacts

Intel

Intel Xeon 6 6521P 24-Core 2.6 GHz 144MB PK8072006347700

SKU CH-7AX7-BEYE7 MPN PK8072006347700

24-core server processor with 48 threads, 144 MB cache and DDR5-6400 support for single-socket platforms

  • NameXeon 6521P
  • CPU Socket TypeFCLGA 4710
  • Core NameGranite Rapids
  • # of Cores24-Core
  • # of Threads48
  • Operating Frequency2.6 GHz
  • 24 cores and 48 threads handle heavy parallel workloads
  • 1 GHz all-core turbo sustains high frequency across every core
  • 144 MB L3 cache keeps large datasets close to the compute units
  • DDR5 6400 memory controller supports up to 4 TB of system memory
  • 136 PCIe 5.0 lanes provide extensive I/O bandwidth for storage and networking

24-core Xeon 6 for single-socket servers

The Intel Xeon 6 6521P delivers 24 cores and 48 threads in a 3 nm design built for the FCLGA 4710 socket. It targets single-socket servers running virtualised workloads, database instances and high-performance compute where thread density and memory bandwidth matter. Cooling is not included.

DDR5-6400 memory controller with 136 PCIe 5.0 lanes

The integrated controller supports DDR5 at 6400 MT/s up to 4 TB total capacity across the platform. The 136 lanes of PCI Express 5.0 provide I/O headroom for storage arrays, accelerators and high-speed networking without stepping down to earlier revisions.

144 MB L3 cache and 225 W TDP

A 144 MB shared L3 cache feeds all 24 cores at 2.6 GHz base and 4.1 GHz all-core turbo, keeping latency-sensitive tasks fed. The 225 W thermal design power sets the cooling budget; workloads that sustain all-core turbo will need a solution rated for that envelope.

Highlights

  • 24 cores and 48 threads handle heavy parallel workloads
  • 1 GHz all-core turbo sustains high frequency across every core
  • 144 MB L3 cache keeps large datasets close to the compute units
  • DDR5 6400 memory controller supports up to 4 TB of system memory
  • 136 PCIe 5.0 lanes provide extensive I/O bandwidth for storage and networking

Specifications

BrandIntel
SeriesXeon 6
NameXeon 6521P
ModelPK8072006347700
CPU Socket TypeFCLGA 4710
Core NameGranite Rapids
# of Cores24-Core
# of Threads48
Operating Frequency2.6 GHz
Max Turbo FrequencyMax Turbo Frequency 4.1 GHz
All Core Turbo Frequency 4.1 GHz
L3 Cache144MB
64-Bit SupportYes
Hyper-Threading SupportYes
Manufacturing Tech3 nm
Integrated Memory Controller SpeedDDR5 6400
Maximum Memory Capacity4TB
Virtualization Technology SupportYes
Scalability1S Only
PCI Express Revision5.0
Max # of PCI Express Lanes136
Multimedia InstructionIntel SSE4.2, Intel AVX, Intel AVX2, Intel AVX-512, Intel AMX
Thermal Design Power225W
Cooling DeviceCooling device not included - Processor Only
Shipping weight0.14 kg
Package size83 × 64 × 13 mm

Questions about this item

Should I pick the 24-core 6521P or a higher-core Xeon 6 model?

Choose the 24-core 6521P when your workloads need strong single-thread performance at 4.1 GHz all-core turbo with 144 MB L3 cache, and you are building a single-socket server limited to 136 PCIe 5.0 lanes.

What does the 2.6 GHz base frequency deliver in a real server?

The 2.6 GHz base frequency guarantees sustained 24-core throughput at 225 W TDP, while the 4.1 GHz all-core turbo lifts burst performance for latency-sensitive tasks without exceeding the same power envelope.

How does the FCLGA 4710 socket and PCIe 5.0 x136 affect expansion?

The FCLGA 4710 platform provides 136 PCI Express 5.0 lanes directly from the CPU, enabling high-density GPU, storage and networking cards at full Gen 5 speed in a single-socket design.

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