Intel Core i9 12900K vs Intel Core i9 9900X

VS

Intel Core i9 12900K

Intel Core i9 9900X

We compared two desktop CPUs: Intel Core i9 12900K with 16 cores 32GHz and Intel Core i9 9900X with 10 cores 3.5GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

Intel Core i9 12900K 's Advantages

Released 3 years late

Integrated graphics card

Higher specification of memory (4800 vs 2666)

Newer PCIe version (5.0 vs 3.0)

Higher base frequency (32GHz vs 3.5GHz)

Larger L3 cache size (30MB vs 20MB)

More modern manufacturing process (10nm vs 14nm)

Lower TDP (125W vs 165W)

Intel Core i9 9900X 's Advantages

Larger memory bandwidth (85GB/s vs 76.8GB/s)

Score

Benchmark

Cinebench R23 Single Core

Intel Core i9 12900K +71%

2028

Intel Core i9 9900X

1182

Cinebench R23 Multi Core

Intel Core i9 12900K +95%

27422

Intel Core i9 9900X

13994

Geekbench 6 Single Core

Intel Core i9 12900K +80%

2631

Intel Core i9 9900X

1455

Geekbench 6 Multi Core

Intel Core i9 12900K +65%

17004

Intel Core i9 9900X

10273

Geekbench 5 Single Core

Intel Core i9 12900K +69%

1970

Intel Core i9 9900X

1165

Geekbench 5 Multi Core

Intel Core i9 12900K +59%

17028

Intel Core i9 9900X

10704

Passmark CPU Single Core

Intel Core i9 12900K +62%

4173

Intel Core i9 9900X

2565

Passmark CPU Multi Core

Intel Core i9 12900K +89%

41390

Intel Core i9 9900X

21833

Intel Core i9 12900K

VS

Intel Core i9 9900X

General Parameters

Oct 2021

Release Date

Oct 2018

Intel

Manufacturer

Intel

Desktop

Type

Desktop

x86-64

Instruction Set

x86-64

Alder Lake

Core Architecture

Skylake

i9-12900K

Processor Number

i9-9900X

LGA-1700

Socket

LGA-2066

UHD Graphics 770

Integrated Graphics

N/A

Package

10 nm

Manufacturing Process

14 nm

125 W

Power Consumption

165 W

100°C

Peak Operating Temperature

92 °C

CPU Performance

8

Performance Cores

10

16

Performance Core Threads

20

3,2 GHz

Performance Core Base Frequency

3.5 GHz

5.1 GHz

Performance Core Turbo Frequency

4.4 GHz

8

Efficiency Cores

-

8

Efficiency Core Threads

-

2.4 GHz

Efficiency Core Base Frequency

-

3.9 GHz

Efficiency Core Turbo Frequency

-

16

Total Core Count

10

24

Total Thread Count

20

100 MHz

Bus Frequency

100 MHz

32x

Multiplier

35x

64 K per core

L1 Cache

64 K per core

14 MB shared

L2 Cache

1 MB per core

30 MB shared

L3 Cache

20 MB shared

Yes

Unlocked Multiplier

Yes

Memory Parameters

DDR5-4800, DDR4-3200

Memory Types

DDR4-2666

128 GB

Max Memory Size

128 GB

2

Max Memory Channels

4

76.8 GB/s

Max Memory Bandwidth

85 GB/s

Yes

ECC Memory Support

No

Graphics Card Parameters

true

Integrated Graphics

-

300 MHz

GPU Base Frequency

-

1550 MHz

GPU Max Dynamic Frequency

-

256

Shader Units

-

16

Texture Units

-

8

Raster Operation Units

-

32

Execution Units

-

15 W

Power Consumption

-

0.78 TFLOPS

Graphics Performance

-

Miscellaneous

Intel Core i9 12900K

Official Website

Intel Core i9 9900X

5.0

PCIe Version

3.0

20

PCIe Lanes

44

-

Extended Instruction Set

SSE4.1, SSE4.2, AVX-2, AVX-512

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