CPU Comparison

i

Intel

INTEL

Intel Xeon 638

CORE STATE Granite Rapids

CORE SPECS 16 Cores / 32 Threads

CLOCK SPEED 3.2 Base / 4.8 GHz Turbo

CACHE 72 MB (shared)

MAX TDP 180W

ARCHITECTURE Granite Rapids

nm

PROCESS 5 nm

LAUNCH DATE 2026

VS

i

Intel

INTEL

Xeon 6521P

CORE STATE Granite Rapids

CORE SPECS 24 Cores / 48 Threads

CLOCK SPEED 2.6 Base / 4.1 GHz Turbo

CACHE 144 MB (shared)

MAX TDP 225W

ARCHITECTURE Granite Rapids

nm

PROCESS 5 nm

LAUNCH DATE 2025

PERFORMANCE BENCHMARKS

cinebench_cinebench_r15_multicore

4,768

5,711

cinebench_cinebench_r15_singlecore

672

806

cinebench_cinebench_r20_multicore

19,867

23,796

cinebench_cinebench_r20_singlecore

2,804

3,359

cinebench_cinebench_r23_multicore

47,303

56,658

cinebench_cinebench_r23_singlecore

6,678

7,998

passmark_data_compression

725,818

967,721

passmark_data_encryption

36,030

51,221

passmark_extended_instructions

56,498

72,820

passmark_find_prime_numbers

381

560

passmark_floating_point_math

144,757

178,828

passmark_integer_math

184,884

246,263

passmark_multithread

55,651

66,657

passmark_physics

4,704

5,972

passmark_random_string_sorting

74,318

104,517

passmark_single_thread

3,670

3,238

passmark_singlethread

3,670

3,238

DETAILED SPECIFICATIONS

SPECIFICATION

638

6521P

Core Specs

Cores

16

24 +50.0%

Threads

32

48 +50.0%

Base Clock (GHz)

3.2

2.6 -18.8%

Boost Clock (GHz)

4.8

4.1 -14.6%

Frequency (GHz)

3.2

2.6 -18.8%

Turbo Clock (GHz)

4.8

4.1 -14.6%

Multiplier

32

26 -18.8%

SMP CPUs

1

1 0.0%

Cache

L1 Cache

112 KB (per core)

112 KB (per core)

L2 Cache

2 MB (per core)

2 MB (per core)

L3 Cache

72 MB (shared)

144 MB (shared)

Power

TDP (W)

180

225 +25.0%

Architecture

Architecture

Granite Rapids

Granite Rapids

Codename

Granite Rapids

Granite Rapids

Generation

Xeon 600 (Granite Rapids-WS)

Xeon 6 (Granite Rapids-SP)

Process Size

5 nm

5 nm

Die Size

598 mm²

598 mm²

Foundry

Intel

Intel

Memory

Memory Support

DDR5

DDR5

Memory Bus

Quad-channel

Eight-channel

Memory Bandwidth

204.8 GB/s

409.6 GB/s

ECC Memory

Yes

Yes

Platform

Socket

Intel Socket 4710

Intel Socket 4710

Chipsets

W890

—

PCIe

Gen 5, 80 Lanes(CPU only)

Gen 5, 136 Lanes(CPU only)

AMD Multi-Die

IO Process Size

10 nm

10 nm

Interconnect

CXL

Gen 2.0 (Shared with PCI-E)

Gen 2.0, 64 Lanes (Shared with PCI-E)

Other

Market

Server/Workstation

Server/Workstation

Production Status

Active

Active

Launch Price

$899

$1250

Part Number

SA2DN

SRVNS

Package

FC-LGA18N

FC-LGA18N

Tj Max

100°C

100°C

Bundled Cooler

None

None

View Xeon 638 Details View Xeon 6521P Details