Intel Core i9 12900E vs Intel Core i9 9940X

VS

Intel Core i9 12900E

Intel Core i9 9940X

We compared two desktop CPUs: Intel Core i9 12900E with 16 cores 2.3GHz and Intel Core i9 9940X with 14 cores 3.3GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

Intel Core i9 12900E 's Advantages

Released 3 years and 3 months late

Integrated graphics card

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 (35W vs 165W)

Intel Core i9 9940X 's Advantages

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

Higher base frequency (3.3GHz vs 2.3GHz)

Score

Benchmark

Geekbench 6 Single Core

Intel Core i9 12900E +30%

1735

Intel Core i9 9940X

1328

Geekbench 6 Multi Core

Intel Core i9 12900E +5%

10366

Intel Core i9 9940X

9787

Intel Core i9 12900E

VS

Intel Core i9 9940X

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

i9-9940X

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

35 W

Power Consumption

165 W

72 °C

Peak Operating Temperature

88 °C

Intel

Foundry

-

215 mm²

Die Size

-

CPU Performance

8

Performance Cores

14

16

Performance Core Threads

28

2.3 GHz

Performance Core Base Frequency

3.3 GHz

5.0 GHz

Performance Core Turbo Frequency

4.4 GHz

8

Efficiency Cores

-

8

Efficiency Core Threads

-

1.7 GHz

Efficiency Core Base Frequency

-

3.8 GHz

Efficiency Core Turbo Frequency

-

16

Total Core Count

14

24

Total Thread Count

28

100 MHz

Bus Frequency

100 MHz

23

Multiplier

33x

80 KB per core

L1 Cache

64 K per core

14 MB

L2 Cache

1 MB per core

30 MB

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

Yes

ECC Memory Support

No

Graphics Card Parameters

true

Integrated Graphics

-

300 MHz

GPU Base Frequency

-

1550 MHz

GPU Max Dynamic Frequency

-

32

Execution Units

-

Miscellaneous

Intel Core i9 12900E

Official Website

Intel Core i9 9940X

5

PCIe Version

3.0

20

PCIe Lanes

44

-

Extended Instruction Set

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

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