CPU Comparison

i

Intel

INTEL

Intel Core i9-12900KF

CORE STATE Alder Lake-S

CORE SPECS 16 Cores / 24 Threads

CLOCK SPEED 3.2 Base / 5.2 GHz Turbo

CACHE 30 MB (shared)

MAX TDP 125W

ARCHITECTURE Alder Lake

nm

PROCESS 10 nm

LAUNCH DATE 2021

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

3dmark_16_threads

9,860

N/A

3dmark_2_threads

2,112

N/A

3dmark_4_threads

4,132

N/A

3dmark_8_threads

7,551

N/A

3dmark_max_threads

11,586

N/A

3dmark_single_thread

1,069

N/A

cinebench_cinebench_r15_multicore

3,510

4,966

cinebench_cinebench_r15_singlecore

495

701

cinebench_cinebench_r20_multicore

14,626

20,695

cinebench_cinebench_r20_singlecore

2,064

2,921

cinebench_cinebench_r23_multicore

34,825

49,274

cinebench_cinebench_r23_singlecore

4,916

6,956

geekbench_multicore

14,895

N/A

geekbench_singlecore

2,600

N/A

passmark_data_compression

537,785

840,355

passmark_data_encryption

29,502

47,452

passmark_extended_instructions

33,779

57,751

passmark_find_prime_numbers

142

437

passmark_floating_point_math

105,558

155,294

passmark_integer_math

138,932

214,076

passmark_multithread

40,970

57,970

passmark_physics

2,098

4,105

passmark_random_string_sorting

57,177

98,119

passmark_single_thread

4,144

2,829

passmark_singlethread

4,144

2,829

DETAILED SPECIFICATIONS

SPECIFICATION

i9-12900KF

6521P

Core Specs

Cores

16

24 +50.0%

Threads

24

48 +100.0%

Base Clock (GHz)

3.2

2.6 -18.8%

Boost Clock (GHz)

5.2

4.1 -21.2%

Frequency (GHz)

3.2

2.6 -18.8%

Turbo Clock (GHz)

5.2

4.1 -21.2%

Multiplier

32

26 -18.8%

SMP CPUs

1

1 0.0%

Cache

L1 Cache

80 KB (per core)

112 KB (per core)

L2 Cache

1.25 MB (per core)

2 MB (per core)

L3 Cache

30 MB (shared)

144 MB (shared)

Power

TDP (W)

125

225 +80.0%

PL1

241W

—

PL2

241W

—

Architecture

Architecture

Alder Lake

Granite Rapids

Codename

Alder Lake-S

Granite Rapids

Generation

Core i9 (Alder Lake-S)

Xeon 6 (Granite Rapids-SP)

Process Size

10 nm

5 nm

Die Size

215 mm²

598 mm²

Foundry

Intel

Intel

Memory

Memory Support

DDR4, DDR5

DDR5

Memory Bus

Dual-channel

Eight-channel

Memory Bandwidth

—

409.6 GB/s

ECC Memory

No

Yes

DDR4 Speed

3200 MT/s

—

DDR5 Speed

4800 MT/s

—

Platform

Socket

Intel Socket 1700

Intel Socket 4710

Chipsets

Z690, H670, B660, H610

—

PCIe

Gen 4, 20 Lanes(CPU only)

Gen 5, 136 Lanes(CPU only)

Intel Hybrid

Hybrid Cores

P-Cores: 8 E-Cores: 8

—

E-Core Frequency

1800 MHz up to 3.8 GHz

—

AMD Multi-Die

IO Process Size

—

10 nm

Interconnect

CXL

—

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

Other

Market

Desktop

Server/Workstation

Production Status

Active

Active

Launch Price

$564

$1250

Part Number

SRL4J

SRVNS

Package

FC-LGA16A

FC-LGA18N

Tj Max

100°C

100°C

Bundled Cooler

—

None

View Core i9-12900KF Details View Xeon 6521P Details