AMD Ryzen 9 3900X vs AMD Ryzen 7 2700X

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We compared two desktop CPUs: AMD Ryzen 9 3900X with 12 cores 3.8GHz and AMD Ryzen 7 2700X with 8 cores 3.7GHz . 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

Released 1 years and 3 months late

Higher specification of memory (DDR4-3200 vs DDR4-2933)

Larger memory bandwidth (47.68GB/s vs 43.71GB/s)

Newer PCIe version (4.0 vs 3.0)

Higher base frequency (3.8GHz vs 3.7GHz)

Larger L3 cache size (64MB vs 16MB)

More modern manufacturing process (7nm vs 12nm)

Score

Benchmark

Cinebench R23 Single Core

AMD Ryzen 9 3900X +19%

1313

AMD Ryzen 7 2700X

1102

Cinebench R23 Multi Core

AMD Ryzen 9 3900X +84%

18656

AMD Ryzen 7 2700X

10107

Geekbench 6 Single Core

AMD Ryzen 9 3900X +60%

1842

AMD Ryzen 7 2700X

1151

Geekbench 6 Multi Core

AMD Ryzen 9 3900X +103%

11715

AMD Ryzen 7 2700X

5763

Geekbench 5 Single Core

AMD Ryzen 9 3900X +23%

1319

AMD Ryzen 7 2700X

1068

Geekbench 5 Multi Core

AMD Ryzen 9 3900X +64%

11991

AMD Ryzen 7 2700X

7310

Passmark CPU Single Core

AMD Ryzen 9 3900X +11%

2683

AMD Ryzen 7 2700X

2401

Passmark CPU Multi Core

AMD Ryzen 9 3900X +85%

32531

AMD Ryzen 7 2700X

17559

AMD Ryzen 9 3900X

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AMD Ryzen 7 2700X

General Parameters

Jul 2019

Release Date

Apr 2018

AMD

Manufacturer

AMD

Desktop

Type

Desktop

x86-64

Instruction Set

x86-64

Zen 2

Core Architecture

Zen+

AM4

Socket

AM4

N/A

Integrated Graphics

N/A

Package

3.8 billions

Transistor Count

4.8 billions

7 nm

Manufacturing Process

12 nm

AM4

Socket

AM4

105 W

Power Consumption

105 W

95 °C

Peak Operating Temperature

85 °C

CPU Performance

12

Performance Cores

8

24

Performance Core Threads

16

3.8 GHz

Performance Core Base Frequency

3.7 GHz

4.6 GHz

Performance Core Turbo Frequency

4.3 GHz

12

Total Core Count

8

24

Total Thread Count

16

100 MHz

Bus Frequency

100 MHz

38x

Multiplier

37x

64 K per core

L1 Cache

96 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

DDR4-2933

128 GB

Max Memory Size

64 GB

2

Max Memory Channels

2

47.68 GB/s

Max Memory Bandwidth

43.71 GB/s

Yes

ECC Memory Support

Yes

Miscellaneous

AMD Ryzen 9 3900X

Official Website

AMD Ryzen 7 2700X

4.0

PCIe Version

3.0

16

PCIe Lanes

20

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