AMD Ryzen 9 3900X vs Intel Core i9 11900KF

VS

AMD Ryzen 9 3900X Intel Core i9 11900KF

We compared two desktop CPUs: AMD Ryzen 9 3900X with 12 cores 3.8GHz and Intel Core i9 11900KF with 8 cores 3.5GHz . 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 3.5GHz)

Larger L3 cache size (64MB vs 16MB)

Lower TDP (105W vs 125W)

Intel Core i9 11900KF 's Advantages

Released 1 years and 8 months late

Larger memory bandwidth (50GB/s vs 47.68GB/s)

Score

Benchmark

Cinebench R23 Single Core

AMD Ryzen 9 3900X

1313

Intel Core i9 11900KF +25%

1653

Cinebench R23 Multi Core

AMD Ryzen 9 3900X +31%

18656

Intel Core i9 11900KF

14197

Geekbench 6 Single Core

AMD Ryzen 9 3900X

1842

Intel Core i9 11900KF +37%

2536

Geekbench 6 Multi Core

AMD Ryzen 9 3900X +12%

11715

Intel Core i9 11900KF

10374

Geekbench 5 Single Core

AMD Ryzen 9 3900X

1319

Intel Core i9 11900KF +34%

1768

Geekbench 5 Multi Core

AMD Ryzen 9 3900X +17%

11991

Intel Core i9 11900KF

10209

Passmark CPU Single Core

AMD Ryzen 9 3900X

2683

Intel Core i9 11900KF +32%

3557

Passmark CPU Multi Core

AMD Ryzen 9 3900X +28%

32531

Intel Core i9 11900KF

25246

AMD Ryzen 9 3900X

VS

Intel Core i9 11900KF

General Parameters

Jul 2019

Release Date

Mar 2021

AMD

Manufacturer

Intel

Desktop

Type

Desktop

x86-64

Instruction Set

x86-64

Zen 2

Core Architecture

Rocket Lake

-

Processor Number

i9-11900KF

AM4

Socket

LGA-1200

N/A

Integrated Graphics

No

Package

3.8 billions

Transistor Count

-

7 nm

Manufacturing Process

14 nm

AM4

Socket

LGA-1200

105 W

Power Consumption

125 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

3.5 GHz

4.6 GHz

Performance Core Turbo Frequency

5.3 GHz

12

Total Core Count

8

24

Total Thread Count

16

100 MHz

Bus Frequency

100 MHz

38x

Multiplier

35x

64 K per core

L1 Cache

64 K per core

512 K per core

L2 Cache

512 K per core

64 MB shared

L3 Cache

16 MB shared

Yes

Unlocked Multiplier

Yes

Memory Parameters

DDR4-3200

Memory Types

DDR4-3200

128 GB

Max Memory Size

128 GB

2

Max Memory Channels

2

47.68 GB/s

Max Memory Bandwidth

50 GB/s

Yes

ECC Memory Support

No

Miscellaneous

AMD Ryzen 9 3900X

Official Website

Intel Core i9 11900KF

4.0

PCIe Version

4.0

16

PCIe Lanes

20

Related CPU Comparisons

1

AMD Ryzen 9 3900X vs AMD Ryzen 9 5900X

2

AMD Ryzen 9 3900X vs AMD Ryzen 7 5700X

3

AMD Ryzen 9 3900X vs AMD Ryzen 7 5800X3D

4

AMD Ryzen 9 3900X vs AMD Ryzen 5 5600X

5

AMD Ryzen 7 7800X3D vs AMD Ryzen 9 3900X

6

AMD Ryzen 7 5800X vs AMD Ryzen 9 3900X

7

Intel Core i5 12400F vs Intel Core i9 11900KF

8

Intel Core i9 11900KF vs Intel Core i9 11900K

9

AMD Ryzen 9 3900X vs Intel Core i7 13700KF

10

AMD Ryzen 9 3900X vs Intel Core i5 8500T