CPU Comparison

i

Intel

INTEL

Intel Core i9-11900K

CORE STATE Rocket Lake

CORE SPECS 8 Cores / 16 Threads

CLOCK SPEED 3.5 Base / 5.3 GHz Turbo

CACHE 16 MB (shared)

MAX TDP 125W

ARCHITECTURE Rocket Lake

nm

PROCESS 14 nm

LAUNCH DATE 2021

VS

i

Intel

INTEL

Core i9-12900K

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

PERFORMANCE BENCHMARKS

3dmark_16_threads

8,331

9,912

3dmark_2_threads

1,975

2,120

3dmark_4_threads

3,778

4,145

3dmark_8_threads

6,528

7,596

3dmark_max_threads

8,319

11,620

3dmark_single_thread

1,011

1,073

cinebench_cinebench_r15_multicore

2,145

3,531

cinebench_cinebench_r15_singlecore

302

498

cinebench_cinebench_r20_multicore

8,938

14,713

cinebench_cinebench_r20_singlecore

1,261

2,076

cinebench_cinebench_r23_multicore

21,283

35,031

cinebench_cinebench_r23_singlecore

3,004

4,945

geekbench_multicore

10,915

15,525

geekbench_singlecore

2,388

2,640

passmark_data_compression

330,836

537,341

passmark_data_encryption

16,000

29,579

passmark_extended_instructions

23,406

33,682

passmark_find_prime_numbers

68

147

passmark_floating_point_math

52,841

105,471

passmark_integer_math

89,279

139,090

passmark_multithread

25,038

41,213

passmark_physics

1,052

2,219

passmark_random_string_sorting

37,942

57,094

passmark_single_thread

3,511

4,136

passmark_singlethread

3,511

4,136

DETAILED SPECIFICATIONS

SPECIFICATION

i9-11900K

i9-12900K

Core Specs

Cores

8

16 +100.0%

Threads

16

24 +50.0%

Base Clock (GHz)

3.5

3.2 -8.6%

Boost Clock (GHz)

5.3

5.2 -1.9%

Frequency (GHz)

3.5

3.2 -8.6%

Turbo Clock (GHz)

5.3

5.2 -1.9%

Multiplier

35

32 -8.6%

SMP CPUs

1

1 0.0%

Cache

L1 Cache

80 KB (per core)

80 KB (per core)

L2 Cache

512 KB (per core)

1.25 MB (per core)

L3 Cache

16 MB (shared)

30 MB (shared)

Power

TDP (W)

125

125 0.0%

PL1

—

241 W

PL2

—

241 W

Architecture

Architecture

Rocket Lake

Alder Lake

Codename

Rocket Lake

Alder Lake-S

Generation

Core i9 (Rocket Lake-S)

Core i9 (Alder Lake-S)

Process Size

14 nm

10 nm

Die Size

276 mm²

215 mm²

Foundry

Intel

Intel

Memory

Memory Support

DDR4

DDR4, DDR5

Memory Bus

Dual-channel

Dual-channel

Memory Bandwidth

51.2 GB/s

76.8 GB/s

ECC Memory

No

Yes

DDR4 Speed

—

3200 MT/s

Platform

Socket

Intel Socket 1200

Intel Socket 1700

Chipsets

H510, B560, H570, Q570, W580, Z590, Q470, H470, W480, Z490

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

PCIe

Gen 4, 20 Lanes(CPU only)

Gen 5, 16 Lanes(CPU only)

Intel Hybrid

Hybrid Cores

—

P-Cores: 8 E-Cores: 8

E-Core Frequency

—

2.4 GHz up to 3.9 GHz

Graphics

Integrated Graphics

UHD Graphics 750

UHD Graphics 770

Other

Market

Desktop

Desktop

Production Status

End-of-life

Active

Launch Price

$539

$599

Part Number

SRKND

SRL4H

Package

FC-LGA14A

FC-LGA16A

Tj Max

100°C

100°C

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