Intel Xeon 6521P

Processor

CPU cores: 24
CPU threads: 48
Maximum boost clock: 4.1 GHz
Thermal design power: 225 W

No matched benchmark results are available for this entry yet.

Processing & platform

CPU cores: 24
CPU threads: 48
Base clock: 2.6 GHz
CPU reference clock: 100 MHz^*
Maximum boost clock: 4.1 GHz
L3 cache: 144 MB^*
Socket / package: FCLGA4710^*
Manufacturing process: Intel 3^*

Cache hierarchy

Smart Cache / shared
Level
Smart Cache
Scope
shared
Size
144 MB
Reported cache^*
Size
144 MB^*
Level
Reported cache (level unstated)^*

Memory & storage

Memory channels: 8^*
Rated memory bandwidth: 409.60 GB/s^*

Power specifications

Thermal design power: 225 W

System configuration

Detailed specifications

Specifications 1 · 11 fields

Maximum turbo frequency

4.1^* GHz

Scope and conditions

native_context

Clock scope: Maximum turbo declaration; not measured or sustained all-core frequency^*

Codename

Granite Rapids^*

Processor model

Xeon 6521P^*

Full processor designation

Intel(R) Xeon(R) 6521P^*

Processor family

Intel Xeon 6^*

Launch year

precision: year^*
text: 2025^*

Declared memory capacity

4^* TB

Scope and conditions

native_context

Capacity unit base: Not independently established^*

CPU cores

24^*

L3 cache

144^* MB

Scope and conditions

native_context

Capacity unit base: Not independently established^*

Thermal design power declaration

225^* W

CPU threads

48^*

Specifications 2 · 43 fields

name: Xeon 6521P^*
Release Date: Feb 24th, 2025^*
Part#: SRVNS^*
Frequency: 2.6^* GHz
Turbo Clock: up to 4.1 GHz^*
I/O Process Size: 10^* nm
Max. Memory: 4 TB^*
AVX-512 FMA Ports: 2^*
I/O Die Size: 2x 241 mm²^*
2 DPC RAM Speed: 5,200^* MT/s
Base Clock: 100^* MHz
CXL: Gen 2.0, 64 Lanes (Shared with PCI-E)^*
Low Priority Core Freq.: 800^* MHz
High Priority Cores: 8^*
Low Priority Cores: 16^*
Multiplier: 26.0x^*
Multiplier Unlocked: No^*
Codename: Granite Rapids^*
Socket: Intel Socket 4710^*
Generation: Xeon 6 (Granite Rapids-SP)^*
Memory Support: DDR5^*
ECC Memory: Yes^*
# of Cores: 24^*
# of Threads: 48^*
SMP # CPUs: 1^*
Cache L1: 112 KB (per core)^*
Cache L2: 2 MB (per core)^*
Features: MMX, SSE, SSE2, SSE3, SSSE3, SSE4.2, AVX, AVX2, AVX-512, AVX-VNNI, FMA3, SHA, EIST, Speed Shift, HTT, Intel 64, XD bit, VT-x, VT-x EPT, VT-d, AES-NI, TSX, TXT, CLMUL, F16C, BMI1, BMI2, ABM, ADX, AMX, RdRand, 5-level NPT, X2APIC, Intel DSA (3), QAT (3), DLB (3), IAA (3), TDX, TME, SGX (128GB), RDT, VROC, QuickAssist, DLBoost 3.0, Speed Select, TBT 2.0^*
Foundry: Intel^*
Rated Speed: 6,400^* MT/s
Memory Bus: Eight-channel^*
Memory Bandwidth: 409.6^* GB/s
tJMax: 100°C^*
Launch Price: $1,250^*
PCI-Express: Gen 5, 136 Lanes (CPU only)^*
Process Size: 5^* nm
Cache L3: 144 MB (shared)^*
tCaseMax: 82°C^*
Die Size: 598^* mm²
Package: FC-LGA18N^*
Market: Server/Workstation^*
All Core Turbo: 4.1^* GHz
Production Status: Active^*

Specifications 3 · 69 fields

Intel® 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): Yes^*
Intel® Speed Select Technology - Performance Profile: No^*
Intel® Speed Select Technology - Base Frequency: Yes^*
Intel® Resource Director Technology (Intel® RDT): Yes^*
Intel® Speed Shift Technology: Yes^*
# of AVX-512 FMA Units: 2^*
Intel® Volume Management Device (VMD): Yes^*
High Priority Cores: 8^*
High Priority Core Frequency: 2.7^* GHz
Low Priority Cores: 16^*
Low Priority Core Frequency: 2.5^* GHz
Total Cores: 24^*
Intel® Secure Key: Yes^*
Intel® Total Memory Encryption - Multi Key: Yes^*
Intel® Total Memory Encryption: Yes^*
Intel® AES New Instructions: Yes^*
Intel® OS Guard: Yes^*
Intel® Trusted Execution Technology ‡: Yes^*
Execute Disable Bit ‡: Yes^*
Intel® Boot Guard: Yes^*
Mode-based Execute Control (MBEC): Yes^*
Intel® Virtualization Technology (VT-x) ‡: Yes^*
Intel® Virtualization Technology for Directed I/O (VT-d) ‡: Yes^*
Intel® VT-x with Extended Page Tables (EPT) ‡: Yes^*
Intel® Trust Domain Extensions (Intel® TDX): Yes^*
Intel® Crypto Acceleration: Yes^*
Intel® QuickAssist Software Acceleration: Yes^*
Intel® Platform Firmware Resilience Support: Yes^*
Intel® Control-Flow Enforcement Technology: Yes^*
Total Threads: 48^*
Intel® Software Guard Extensions (Intel® SGX): Yes^*
Maximum Enclave Size Support for Intel® SGX: 128^* GB
Intel® Run Sure Technology: Yes^*
Max Turbo Frequency: 4.1^* GHz
Processor Base Frequency: 2.6^* GHz
Cache: 144^* MB
TDP: 225^* W
All Core Turbo Frequency: 4.1^* GHz
Marketing Status: Launched^*
Launch Date: Q1'25^*
Product Collection: Intel® Xeon® 6 processors^*
Embedded Options Available: Yes^*
Max Memory Size (dependent on memory type): 4^* TB
Vertical Segment: Server^*
Maximum Memory Speed: 6400 MT/s^*
Max # of Memory Channels: 8^*
ECC Memory Supported ‡: Yes^*
Scalability: 1S^*
PCI Express Revision: 5.0^*
Processor Number: 6521P^*
Max # of PCI Express Lanes: 136^*
Sockets Supported: FCLGA4710^*
Lithography: Intel 3^*
Package Carrier: E2B^*
DTS Max: 100^* °C
TCASE: 82^* °C
Package Size: 77.5mm x 56.5mm^*
Intel® Turbo Boost Technology ‡: 2.0^*
Intel® Hyper-Threading Technology ‡: Yes^*
Intel® Transactional Synchronization Extensions: Yes^*
Intel® 64 ‡: Yes^*
Instruction Set Extensions: Intel® SSE4.2 | Intel® AVX | Intel® AVX2 | Intel® AVX-512 | Intel® AMX^*

* Provisional data