Intel Core i9 12900K vs AMD Ryzen 5 8400F

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We compared two desktop CPUs: Intel Core i9 12900K with 16 cores 32GHz and AMD Ryzen 5 8400F with 6 cores 4.2GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

Intel Core i9 12900K Advantages

Integrated graphics card

Newer PCIe version (5.0 vs 4)

Higher base frequency (32GHz vs 4.2GHz)

Larger L3 cache size (30MB vs 16MB)

AMD Ryzen 5 8400F Advantages

Released 2 years and 6 months late

Higher specification of memory (DDR5-5200 vs DDR5-4800)

Larger memory bandwidth (83.2GB/s vs 76.8GB/s)

Lower TDP (65W vs 125W)

Score

Benchmark

Cinebench R23 Single Core

Intel Core i9 12900K +19%

2028

AMD Ryzen 5 8400F

1691

Cinebench R23 Multi Core

Intel Core i9 12900K +105%

27422

AMD Ryzen 5 8400F

13361

Intel Core i9 12900K

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AMD Ryzen 5 8400F

General Parameters

Oct 2021

Release Date

Apr 2024

Intel

Manufacturer

AMD

Desktop

Type

Desktop

x86-64

Instruction Set

-

Alder Lake

Core Architecture

Phoenix

i9-12900K

Processor Number

-

LGA-1700

Socket

AMD Socket AM5

UHD Graphics 770

Integrated Graphics

N/A

-

Generation

Ryzen 5 (Zen 4 (Phoenix))

Package

-

Transistor Count

25 billions

10 nm

Manufacturing Process

4 nm

LGA-1700

Socket

AMD Socket AM5

125 W

Power Consumption

65 W

100°C

Peak Operating Temperature

-

Foundry

TSMC

-

Die Size

178 mm²

-

Package

FC-LGA1718

CPU Performance

8

Performance Cores

-

16

Performance Core Threads

-

3,2 GHz

Performance Core Base Frequency

4.2 GHz

5.1 GHz

Performance Core Turbo Frequency

4.7 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

6

24

Total Thread Count

12

100 MHz

Bus Frequency

100 MHz

32x

Multiplier

42.0

64 K per core

L1 Cache

64 KB per core

14 MB shared

L2 Cache

1 MB per core

30 MB shared

L3 Cache

16 MB

Yes

Unlocked Multiplier

Yes

-

SMP

1

Memory Parameters

DDR5-4800, DDR4-3200

Memory Types

DDR5-5200

128 GB

Max Memory Size

256 GB

2

Max Memory Channels

2

76.8 GB/s

Max Memory Bandwidth

83.2 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

AMD Ryzen 5 8400F

5.0

PCIe Version

4

20

PCIe Lanes

20

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