Specifications
Processor Number
Intel Xeon 6521P
Product Collection
Intel Xeon 6 processors (6500P series)
Code Name
Granite Rapids-SP (Products formerly Granite Rapids)
Vertical Segment
Server
Total Cores
24 P-cores
Total Threads
48 (Hyper-Threading enabled)
Processor Base Frequency
2.6 GHz
Max Turbo Frequency
4.1 GHz
All-Core Turbo Frequency
4.1 GHz
L3 Cache
144 MB
L2 Cache
2 MB per core
L1 Cache
112 KB per core (data + instruction)
TDP (Base Power)
225 W
Socket
LGA4710 (Socket E2)
Lithography
Intel 3
Sockets Supported
1S (single-socket optimised)
Memory Type
DDR5 RDIMM / MRDIMM
Max Memory Speed
DDR5-6400 MT/s
Memory Channels
8 channels per socket
Intel UPI Speed
24 GT/s
Max UPI Links
3
AVX-512 FMA Ports
2
PCIe Lanes
PCIe 5.0 (CXL 2.0 capable)
Launch Date
Q1'25
Embedded Options Available
Yes
Best Fit
24-core single-socket compute for AI inference hosts and analytics clusters
Package / MPN
Intel Xeon 6521P (tray & boxed)
Overview
The Intel Xeon 6521P is a Performance-core (P-core) SKU from the 6500P series of Intel Xeon 6 — the Granite Rapids-SP generation built on the Intel 3 process and the LGA4710 (Socket E2) platform. 24 cores and 48 threads with 144 MB of L3 cache sit behind a 2.6 GHz base / 4.1 GHz max turbo clock envelope at a 225 W TDP, so it slots into the same 1U and 2U thermal budgets as the previous Xeon Scalable generation while lifting per-core IPC and memory bandwidth.
Memory support is DDR5-6400 across 8 channels per socket, with MRDIMM support on the platform for higher-bandwidth configurations, and the socket carries PCIe 5.0 with CXL 2.0 capable lanes — which is what makes this class viable as an AI inference host CPU alongside an accelerator. Intel UPI at 24 GT/s with up to 3 links handles the interconnect on multi-socket boards.
QS Compute supplies the Xeon 6521P as tray and boxed CPUs, and can bundle it with matched LGA4710 server boards, DDR5-6400 RDIMMs and PCIe 5.0 NVMe storage so you receive a validated platform rather than a loose part. 24-core single-socket compute for AI inference hosts and analytics clusters.
Key Benefits
24 P-cores / 48 threads on the Intel 3 Granite Rapids-SP generation, with 144 MB of shared L3. DDR5-6400 at 8 channels per socket plus MRDIMM support for memory-bandwidth-bound AI inference and analytics. PCIe 5.0 with CXL 2.0 capable lanes for accelerator and NVMe expansion. 225 W TDP in the standard 6500P power envelope — drop-in density for existing 1U/2U platforms. AVX-512 with 2 FMA ports for vectorised inference and HPC kernels. 1S (single-socket optimised).
Applications
Cloud and scale-out virtualisation hosts; AI inference server CPUs paired with PCIe accelerators; database and analytics clusters; CDN and web-tier compute; telecom / edge-datacenter (5G MEC) nodes; HPC and EDA compute farms; storage controllers and hyper-converged infrastructure.
Request a Quote — INTEL XEON 6521P — 24-CORE GRANITE RAPIDS-SP SERVER CPU
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