Intel Core i9 7900X vs AMD Ryzen 9 3900XT

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We compared two desktop CPUs: Intel Core i9 7900X with 10 cores 3.3GHz and AMD Ryzen 9 3900XT with 12 cores 3.8GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

Intel Core i9 7900X 's Advantages

Larger memory bandwidth (79.47GB/s vs 47.68GB/s)

AMD Ryzen 9 3900XT 's Advantages

Released 3 years and 2 months late

Higher specification of memory (DDR4-3200 vs DDR4-2666)

Newer PCIe version (4.0 vs 3.0)

Higher base frequency (3.8GHz vs 3.3GHz)

Larger L3 cache size (64MB vs 14MB)

Lower TDP (105W vs 140W)

Score

Benchmark

Cinebench R23 Single Core

Intel Core i9 7900X

1203

AMD Ryzen 9 3900XT +12%

1352

Cinebench R23 Multi Core

Intel Core i9 7900X

11804

AMD Ryzen 9 3900XT +56%

18436

Geekbench 6 Single Core

Intel Core i9 7900X

1323

AMD Ryzen 9 3900XT +33%

1763

Geekbench 6 Multi Core

Intel Core i9 7900X

8536

AMD Ryzen 9 3900XT +29%

11025

Geekbench 5 Single Core

Intel Core i9 7900X

1127

AMD Ryzen 9 3900XT +16%

1311

Geekbench 5 Multi Core

Intel Core i9 7900X

10189

AMD Ryzen 9 3900XT +20%

12279

Passmark CPU Single Core

Intel Core i9 7900X

2556

AMD Ryzen 9 3900XT +8%

2769

Passmark CPU Multi Core

Intel Core i9 7900X

20991

AMD Ryzen 9 3900XT +56%

32856

Intel Core i9 7900X

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AMD Ryzen 9 3900XT

General Parameters

May 2017

Release Date

Jul 2020

Intel

Manufacturer

Amd

Desktop

Type

Desktop

x86-64

Instruction Set

x86-64

Skylake

Core Architecture

Zen 2 (Matisse)

i9-7900X

Processor Number

-

LGA-2066

Socket

AM4

N/A

Integrated Graphics

No

Package

-

Transistor Count

3.8 billions

14 nm

Manufacturing Process

7 nm

LGA-2066

Socket

AM4

140 W

Power Consumption

105 W

95 °C

Peak Operating Temperature

95°C

CPU Performance

10

Performance Cores

12

20

Performance Core Threads

24

3.3 GHz

Performance Core Base Frequency

3.8 GHz

4.3 GHz

Performance Core Turbo Frequency

4.7 GHz

10

Total Core Count

12

20

Total Thread Count

24

100 MHz

Bus Frequency

100 MHz

33x

Multiplier

38x

64 K per core

L1 Cache

64 K per core

1 MB per core

L2 Cache

512 K per core

14 MB shared

L3 Cache

64 MB shared

Yes

Unlocked Multiplier

Yes

Memory Parameters

DDR4-2666

Memory Types

DDR4-3200

128 GB

Max Memory Size

128 GB

4

Max Memory Channels

2

79.47 GB/s

Max Memory Bandwidth

47.68 GB/s

No

ECC Memory Support

Yes

Miscellaneous

Intel Core i9 7900X

Official Website

AMD Ryzen 9 3900XT

3.0

PCIe Version

4.0

44

PCIe Lanes

24

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

Extended Instruction Set

-

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