Intel Core i9 9940X vs AMD Ryzen 9 7900X

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We compared two desktop CPUs: Intel Core i9 9940X with 14 cores 3.3GHz and AMD Ryzen 9 7900X with 12 cores 4.7GHz . 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 83.2GB/s)

Lower TDP (165W vs 170W)

AMD Ryzen 9 7900X 's Advantages

Released 3 years and 11 months late

Integrated graphics card

Higher specification of memory (DDR5-5200 vs DDR4-2666)

Newer PCIe version (5.0 vs 3.0)

Higher base frequency (4.7GHz vs 3.3GHz)

Larger L3 cache size (64MB vs 20MB)

Score

Benchmark

Cinebench R23 Single Core

Intel Core i9 9940X

1228

AMD Ryzen 9 7900X +65%

2033

Cinebench R23 Multi Core

Intel Core i9 9940X

15351

AMD Ryzen 9 7900X +90%

29242

Geekbench 6 Single Core

Intel Core i9 9940X

1328

AMD Ryzen 9 7900X +121%

2942

Geekbench 6 Multi Core

Intel Core i9 9940X

9787

AMD Ryzen 9 7900X +95%

19092

Geekbench 5 Single Core

Intel Core i9 9940X

1189

AMD Ryzen 9 7900X +91%

2277

Geekbench 5 Multi Core

Intel Core i9 9940X

14374

AMD Ryzen 9 7900X +42%

20503

Passmark CPU Single Core

Intel Core i9 9940X

2608

AMD Ryzen 9 7900X +65%

4317

Passmark CPU Multi Core

Intel Core i9 9940X

28355

AMD Ryzen 9 7900X +83%

52013

Intel Core i9 9940X

VS

AMD Ryzen 9 7900X

General Parameters

Oct 2018

Release Date

Sep 2022

Intel

Manufacturer

AMD

Desktop

Type

Desktop

x86-64

Instruction Set

x86-64

Skylake

Core Architecture

Raphael

i9-9940X

Processor Number

-

LGA-2066

Socket

AM5

N/A

Integrated Graphics

AMD Radeon™ Graphics

Package

14 nm

Manufacturing Process

5 nm

LGA-2066

Socket

AM5

165 W

Power Consumption

170 W

88 °C

Peak Operating Temperature

95 °C

CPU Performance

14

Performance Cores

12

28

Performance Core Threads

24

3.3 GHz

Performance Core Base Frequency

4.7 GHz

4.4 GHz

Performance Core Turbo Frequency

5.6 GHz

14

Total Core Count

12

28

Total Thread Count

24

100 MHz

Bus Frequency

100 MHz

33x

Multiplier

47x

64 K per core

L1 Cache

-

1 MB per core

L2 Cache

12 MB shared

20 MB shared

L3 Cache

64 MB shared

Yes

Unlocked Multiplier

Yes

Memory Parameters

DDR4-2666

Memory Types

DDR5-5200

128 GB

Max Memory Size

128 GB

4

Max Memory Channels

2

85 GB/s

Max Memory Bandwidth

83.2 GB/s

No

ECC Memory Support

-

Graphics Card Parameters

-

Integrated Graphics

true

Miscellaneous

Intel Core i9 9940X

Official Website

AMD Ryzen 9 7900X

3.0

PCIe Version

5.0

44

PCIe Lanes

24

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

Extended Instruction Set

-

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