Intel Core i9 9940X vs Intel Core i5 12400

VS

We compared two desktop CPUs: Intel Core i9 9940X with 14 cores 3.3GHz and Intel Core i5 12400 with 6 cores 2.5GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

Intel Core i9 9940X 's Advantages

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

Higher base frequency (3.3GHz vs 2.5GHz)

Larger L3 cache size (20MB vs 18MB)

Intel Core i5 12400 's Advantages

Released 3 years and 3 months late

Integrated graphics card

Higher specification of memory (DDR5-4800 vs DDR4-2666)

Newer PCIe version (5.0 vs 3.0)

More modern manufacturing process (10nm vs 14nm)

Lower TDP (65W vs 165W)

Score

Benchmark

Cinebench R23 Single Core

Intel Core i9 9940X

1228

Intel Core i5 12400 +34%

1647

Cinebench R23 Multi Core

Intel Core i9 9940X +24%

15351

Intel Core i5 12400

12344

Geekbench 6 Single Core

Intel Core i9 9940X

1328

Intel Core i5 12400 +68%

2244

Geekbench 6 Multi Core

Intel Core i9 9940X

9787

Intel Core i5 12400

9793

Geekbench 5 Single Core

Intel Core i9 9940X

1189

Intel Core i5 12400 +36%

1622

Geekbench 5 Multi Core

Intel Core i9 9940X +65%

14374

Intel Core i5 12400

8662

Passmark CPU Single Core

Intel Core i9 9940X

2608

Intel Core i5 12400 +35%

3528

Passmark CPU Multi Core

Intel Core i9 9940X +45%

28355

Intel Core i5 12400

19439

Intel Core i9 9940X

VS

Intel Core i5 12400

General Parameters

Oct 2018

Release Date

Jan 2022

Intel

Manufacturer

Intel

Desktop

Type

Desktop

x86-64

Instruction Set

x86-64

Skylake

Core Architecture

Alder Lake

i9-9940X

Processor Number

i5-12400

LGA-2066

Socket

LGA-1700

N/A

Integrated Graphics

UHD Graphics 730

Package

14 nm

Manufacturing Process

10 nm

LGA-2066

Socket

LGA-1700

165 W

Power Consumption

65 W

-

Max Turbo Power Consumption

117 W

88 °C

Peak Operating Temperature

100°C

CPU Performance

14

Performance Cores

6

28

Performance Core Threads

12

3.3 GHz

Performance Core Base Frequency

2.5 GHz

4.4 GHz

Performance Core Turbo Frequency

4.4 GHz

14

Total Core Count

6

28

Total Thread Count

12

100 MHz

Bus Frequency

100 MHz

33x

Multiplier

25x

64 K per core

L1 Cache

80 K per core

1 MB per core

L2 Cache

1280 K per core

20 MB shared

L3 Cache

18 MB shared

Yes

Unlocked Multiplier

No

Memory Parameters

DDR4-2666

Memory Types

DDR5-4800, DDR4-3200

128 GB

Max Memory Size

128 GB

4

Max Memory Channels

2

85 GB/s

Max Memory Bandwidth

76.8 GB/s

No

ECC Memory Support

No

Graphics Card Parameters

-

Integrated Graphics

true

-

GPU Base Frequency

300 MHz

-

GPU Max Dynamic Frequency

1450 MHz

-

Shader Units

192

-

Texture Units

48

-

Raster Operation Units

24

-

Execution Units

24

-

Power Consumption

15 W

-

Max Resolution

3840x2160 - 60 Hz

-

Graphics Performance

0.35 TFLOPS

Miscellaneous

Intel Core i9 9940X

Official Website

Intel Core i5 12400

3.0

PCIe Version

5.0

44

PCIe Lanes

20

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

Extended Instruction Set

-

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