AMD Ryzen 9 3900X vs Intel Core i9 13900KF

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We compared two desktop CPUs: AMD Ryzen 9 3900X with 12 cores 3.8GHz and Intel Core i9 13900KF with 24 cores 3.0GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

AMD Ryzen 9 3900X 's Advantages

Higher base frequency (3.8GHz vs 3.0GHz)

Larger L3 cache size (64MB vs 36MB)

Lower TDP (105W vs 125W)

Intel Core i9 13900KF 's Advantages

Released 3 years and 2 months late

Higher specification of memory (DDR5-5600 vs DDR4-3200)

Larger memory bandwidth (89.6GB/s vs 47.68GB/s)

Newer PCIe version (5.0 vs 4.0)

Score

Benchmark

Cinebench R23 Single Core

AMD Ryzen 9 3900X

1313

Intel Core i9 13900KF +72%

2261

Cinebench R23 Multi Core

AMD Ryzen 9 3900X

18656

Intel Core i9 13900KF +99%

37263

Geekbench 6 Single Core

AMD Ryzen 9 3900X

1842

Intel Core i9 13900KF +66%

3074

Geekbench 6 Multi Core

AMD Ryzen 9 3900X

11715

Intel Core i9 13900KF +90%

22375

Cinebench 2024 Single Core

AMD Ryzen 9 3900X

78

Intel Core i9 13900KF +70%

133

Cinebench 2024 Multi Core

AMD Ryzen 9 3900X

1068

Intel Core i9 13900KF +100%

2144

Geekbench 5 Single Core

AMD Ryzen 9 3900X

1319

Intel Core i9 13900KF +65%

2178

Geekbench 5 Multi Core

AMD Ryzen 9 3900X

11991

Intel Core i9 13900KF +99%

23911

Passmark CPU Single Core

AMD Ryzen 9 3900X

2683

Intel Core i9 13900KF +72%

4624

Passmark CPU Multi Core

AMD Ryzen 9 3900X

32531

Intel Core i9 13900KF +80%

58710

AMD Ryzen 9 3900X

VS

Intel Core i9 13900KF

General Parameters

Jul 2019

Release Date

Sep 2022

AMD

Manufacturer

Intel

Desktop

Type

Desktop

x86-64

Instruction Set

x86-64

Zen 2

Core Architecture

Raptor Lake

-

Processor Number

i9-13900K

AM4

Socket

LGA-1700

N/A

Integrated Graphics

No

Package

3.8 billions

Transistor Count

-

7 nm

Manufacturing Process

10 nm

AM4

Socket

LGA-1700

105 W

Power Consumption

125 W

-

Max Turbo Power Consumption

253 W

95 °C

Peak Operating Temperature

100°C

CPU Performance

12

Performance Cores

8

24

Performance Core Threads

16

3.8 GHz

Performance Core Base Frequency

3.0 GHz

4.6 GHz

Performance Core Turbo Frequency

5.4 GHz

-

Efficiency Cores

16

-

Efficiency Core Threads

16

-

Efficiency Core Base Frequency

2.2 GHz

-

Efficiency Core Turbo Frequency

4.3 GHz

12

Total Core Count

24

Total Thread Count

32

100 MHz

Bus Frequency

100 MHz

38x

Multiplier

30x

64 K per core

L1 Cache

80 K per core

512 K per core

L2 Cache

2 MB per core

64 MB shared

L3 Cache

36 MB shared

Yes

Unlocked Multiplier

Yes

Memory Parameters

DDR4-3200

Memory Types

DDR5-5600, DDR4-3200

128 GB

Max Memory Size

192 GB

2

Max Memory Channels

2

47.68 GB/s

Max Memory Bandwidth

89.6 GB/s

Yes

ECC Memory Support

Yes

Miscellaneous

AMD Ryzen 9 3900X

Official Website

Intel Core i9 13900KF

4.0

PCIe Version

5.0

16

PCIe Lanes

20

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