Intel Core i7 12700KF vs Intel Core i5 8400

VS

Intel Core i7 12700KF Intel Core i5 8400

We compared two desktop CPUs: Intel Core i7 12700KF with 12 cores 3.6GHz and Intel Core i5 8400 with 6 cores 2.8GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

Intel Core i7 12700KF 's Advantages

Released 4 years late

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

Larger memory bandwidth (76.8GB/s vs 41.6GB/s)

Newer PCIe version (5.0 vs 3.0)

Higher base frequency (3.6GHz vs 2.8GHz)

Larger L3 cache size (25MB vs 9MB)

More modern manufacturing process (10nm vs 14nm)

Intel Core i5 8400 's Advantages

Integrated graphics card

Lower TDP (65W vs 125W)

Score

Benchmark

Cinebench R23 Single Core

Intel Core i7 12700KF +87%

1944

Intel Core i5 8400

1038

Cinebench R23 Multi Core

Intel Core i7 12700KF +286%

22801

Intel Core i5 8400

5893

Geekbench 6 Single Core

Intel Core i7 12700KF +114%

2790

Intel Core i5 8400

1298

Geekbench 6 Multi Core

Intel Core i7 12700KF +228%

15374

Intel Core i5 8400

4677

Blender

Intel Core i7 12700KF +327%

346

Intel Core i5 8400

81

Geekbench 5 Single Core

Intel Core i7 12700KF +96%

2031

Intel Core i5 8400

1032

Geekbench 5 Multi Core

Intel Core i7 12700KF +224%

14961

Intel Core i5 8400

4611

Passmark CPU Single Core

Intel Core i7 12700KF +68%

4020

Intel Core i5 8400

2387

Passmark CPU Multi Core

Intel Core i7 12700KF +273%

34419

Intel Core i5 8400

9214

Intel Core i7 12700KF

VS

Intel Core i5 8400

General Parameters

Oct 2021

Release Date

Oct 2017

Intel

Manufacturer

Intel

Desktop

Type

Desktop

x86-64

Instruction Set

x86-64

Alder Lake

Core Architecture

Coffee Lake

i7-12700KF

Processor Number

i5-8400

LGA-1700

Socket

LGA-1151

No

Integrated Graphics

UHD Graphics 630

Package

10 nm

Manufacturing Process

14 nm

LGA-1700

Socket

LGA-1151

125 W

Power Consumption

65 W

190 W

Max Turbo Power Consumption

-

100°C

Peak Operating Temperature

100 °C

CPU Performance

8

Performance Cores

6

16

Performance Core Threads

6

3.6 GHz

Performance Core Base Frequency

2.8 GHz

4.9 GHz

Performance Core Turbo Frequency

4 GHz

4

Efficiency Cores

-

4

Efficiency Core Threads

-

2.7 GHz

Efficiency Core Base Frequency

-

3.8 GHz

Efficiency Core Turbo Frequency

-

12

Total Core Count

6

20

Total Thread Count

6

100 MHz

Bus Frequency

100 MHz

36x

Multiplier

28x

80 K per core

L1 Cache

64 K per core

12 MB shared

L2 Cache

256 K per core

25 MB shared

L3 Cache

9 MB shared

Yes

Unlocked Multiplier

No

Memory Parameters

DDR5-4800, DDR4-3200

Memory Types

DDR4-2666

128 GB

Max Memory Size

128 GB

2

Max Memory Channels

2

76.8 GB/s

Max Memory Bandwidth

41.6 GB/s

Yes

ECC Memory Support

No

Graphics Card Parameters

-

Integrated Graphics

true

-

GPU Base Frequency

350 MHz

-

GPU Max Dynamic Frequency

1050 MHz

-

Shader Units

192

-

Texture Units

24

-

Raster Operation Units

3

-

Execution Units

24

-

Power Consumption

15 W

-

Max Resolution

4096x2304 - 60 Hz

-

Graphics Performance

0.38 TFLOPS

Miscellaneous

Intel Core i7 12700KF

Official Website

Intel Core i5 8400

5.0

PCIe Version

3.0

20

PCIe Lanes

16

-

Extended Instruction Set

SSE4.1, SSE4.2, AVX-2

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