Intel Core i9 12900 vs Intel Core i9 9900X

VS

Intel Core i9 12900

Intel Core i9 9900X

We compared two desktop CPUs: Intel Core i9 12900 with 16 cores 2.4GHz 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 12900 's Advantages

Released 3 years and 3 months late

Higher specification of memory (4800 vs 2666)

Newer PCIe version (5 vs 3.0)

Larger L3 cache size (30MB vs 20MB)

More modern manufacturing process (10nm vs 14nm)

Lower TDP (65W vs 165W)

Intel Core i9 9900X 's Advantages

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

Higher base frequency (3.5GHz vs 2.4GHz)

Score

Benchmark

Cinebench R23 Single Core

Intel Core i9 12900 +68%

1988

Intel Core i9 9900X

1182

Cinebench R23 Multi Core

Intel Core i9 12900 +89%

26454

Intel Core i9 9900X

13994

Geekbench 6 Single Core

Intel Core i9 12900 +87%

2727

Intel Core i9 9900X

1455

Geekbench 6 Multi Core

Intel Core i9 12900 +30%

13396

Intel Core i9 9900X

10273

Intel Core i9 12900

VS

Intel Core i9 9900X

General Parameters

Jan 2022

Release Date

Oct 2018

Intel

Manufacturer

Intel

Desktop

Type

Desktop

-

Instruction Set

x86-64

Alder Lake-S

Core Architecture

Skylake

-

Processor Number

i9-9900X

Intel Socket 1700

Socket

LGA-2066

UHD Graphics 770

Integrated Graphics

N/A

Core i9 (Alder Lake-S)

Generation

-

Package

10 nm

Manufacturing Process

14 nm

65 W

Power Consumption

165 W

72 °C

Peak Operating Temperature

92 °C

Intel

Foundry

-

215 mm²

Die Size

-

CPU Performance

8

Performance Cores

10

16

Performance Core Threads

20

2.4 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

-

1800 MHz

Efficiency Core Base Frequency

-

3.8 GHz

Efficiency Core Turbo Frequency

-

16

Total Core Count

10

24

Total Thread Count

20

100 MHz

Bus Frequency

100 MHz

24.0

Multiplier

35x

80 KB per core

L1 Cache

64 K per core

1.25 MB per core

L2 Cache

1 MB per core

30 MB shared

L3 Cache

20 MB shared

Yes

Unlocked Multiplier

Yes

1

SMP

-

Memory Parameters

DDR4-3200, DDR5-4800

Memory Types

DDR4-2666

-

Max Memory Size

128 GB

2

Max Memory Channels

4

76.8 GB/s

Max Memory Bandwidth

85 GB/s

No

ECC Memory Support

No

Miscellaneous

-

Official Website

Intel Core i9 9900X

5

PCIe Version

3.0

20

PCIe Lanes

44

-

Extended Instruction Set

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

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