CPU Comparison

i

Intel

INTEL

Intel Core i9-12900

CORE STATE Alder Lake-S

CORE SPECS 16 Cores / 24 Threads

CLOCK SPEED 2.4 Base / 5.1 GHz Turbo

CACHE 30 MB (shared)

MAX TDP 65W

ARCHITECTURE Alder Lake

nm

PROCESS 10 nm

LAUNCH DATE 2022

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

2,879

4,966

cinebench_cinebench_r15_singlecore

406

701

cinebench_cinebench_r20_multicore

11,996

20,695

cinebench_cinebench_r20_singlecore

1,693

2,921

cinebench_cinebench_r23_multicore

28,563

49,274

cinebench_cinebench_r23_singlecore

4,032

6,956

passmark_data_compression

407,899

840,355

passmark_data_encryption

23,203

47,452

passmark_extended_instructions

24,777

57,751

passmark_find_prime_numbers

121

437

passmark_floating_point_math

91,514

155,294

passmark_integer_math

127,512

214,076

passmark_multithread

33,608

57,970

passmark_physics

1,730

4,105

passmark_random_string_sorting

44,070

98,119

passmark_single_thread

4,003

2,829

passmark_singlethread

4,003

2,829

DETAILED SPECIFICATIONS

SPECIFICATION

i9-12900

6521P

Core Specs

Cores

16

24 +50.0%

Threads

24

48 +100.0%

Base Clock (GHz)

2.4

2.6 +8.3%

Boost Clock (GHz)

5.1

4.1 -19.6%

Frequency (GHz)

2.4

2.6 +8.3%

Turbo Clock (GHz)

5.1

4.1 -19.6%

Multiplier

24

26 +8.3%

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)

65

225 +246.2%

PL1

65W

—

PL2

202W

—

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

76.8 GB/s

409.6 GB/s

ECC Memory

Yes

Yes

DDR4 Speed

3200 MT/s

—

Platform

Socket

Intel Socket 1700

Intel Socket 4710

Chipsets

Z690, W680, H670, Q670, B660, H610, H610E, Z790, H770, B760

—

PCIe

Gen 5, 16 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)

Graphics

Integrated Graphics

UHD Graphics 770

—

Other

Market

Desktop

Server/Workstation

Production Status

Active

Active

Launch Price

$519

$1250

Part Number

SRL4KQXQ3

SRVNS

Package

FC-LGA16A

FC-LGA18N

Tj Max

100°C

100°C

Bundled Cooler

—

None

View Core i9-12900 Details View Xeon 6521P Details