AMD Ryzen 9 7900X vs AMD Ryzen 7 3800XT

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We compared two desktop CPUs: AMD Ryzen 9 7900X with 12 cores 4.7GHz and AMD Ryzen 7 3800XT with 8 cores 3.9GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

AMD Ryzen 9 7900X 's Advantages

Released 2 years and 2 months late

Integrated graphics card

Higher specification of memory (DDR5-5200 vs DDR4-3200)

Larger memory bandwidth (83.2GB/s vs 47.68GB/s)

Newer PCIe version (5.0 vs 4.0)

Higher base frequency (4.7GHz vs 3.9GHz)

Larger L3 cache size (64MB vs 32MB)

More modern manufacturing process (5nm vs 7nm)

AMD Ryzen 7 3800XT 's Advantages

Lower TDP (105W vs 170W)

Score

Benchmark

Cinebench R23 Single Core

AMD Ryzen 9 7900X +50%

2033

AMD Ryzen 7 3800XT

1352

Cinebench R23 Multi Core

AMD Ryzen 9 7900X +125%

29242

AMD Ryzen 7 3800XT

12960

Geekbench 6 Single Core

AMD Ryzen 9 7900X +75%

2942

AMD Ryzen 7 3800XT

1679

Geekbench 6 Multi Core

AMD Ryzen 9 7900X +200%

19092

AMD Ryzen 7 3800XT

6343

Cinebench 2024 Single Core

AMD Ryzen 9 7900X +49%

121

AMD Ryzen 7 3800XT

81

Cinebench 2024 Multi Core

AMD Ryzen 9 7900X +119%

1614

AMD Ryzen 7 3800XT

734

Blender

AMD Ryzen 9 7900X +110%

406

AMD Ryzen 7 3800XT

193

Geekbench 5 Single Core

AMD Ryzen 9 7900X +72%

2277

AMD Ryzen 7 3800XT

1319

Geekbench 5 Multi Core

AMD Ryzen 9 7900X +119%

20503

AMD Ryzen 7 3800XT

9327

Passmark CPU Single Core

AMD Ryzen 9 7900X +54%

4317

AMD Ryzen 7 3800XT

2793

Passmark CPU Multi Core

AMD Ryzen 9 7900X +120%

52013

AMD Ryzen 7 3800XT

23540

AMD Ryzen 9 7900X

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AMD Ryzen 7 3800XT

General Parameters

Sep 2022

Release Date

Jul 2020

AMD

Manufacturer

AMD

Desktop

Type

Desktop

x86-64

Instruction Set

x86-64

Raphael

Core Architecture

Zen 2

AM5

Socket

AM4

AMD Radeon™ Graphics

Integrated Graphics

N/A

Package

-

Transistor Count

3.8 billions

5 nm

Manufacturing Process

7 nm

AM5

Socket

AM4

170 W

Power Consumption

105 W

95 °C

Peak Operating Temperature

95 °C

CPU Performance

12

Performance Cores

8

24

Performance Core Threads

16

4.7 GHz

Performance Core Base Frequency

3.9 GHz

5.6 GHz

Performance Core Turbo Frequency

4.7 GHz

12

Total Core Count

8

24

Total Thread Count

16

100 MHz

Bus Frequency

100 MHz

47x

Multiplier

39x

-

L1 Cache

64 K per core

12 MB shared

L2 Cache

512 K per core

64 MB shared

L3 Cache

32 MB shared

Yes

Unlocked Multiplier

Yes

Memory Parameters

DDR5-5200

Memory Types

DDR4-3200

128 GB

Max Memory Size

128 GB

2

Max Memory Channels

2

83.2 GB/s

Max Memory Bandwidth

47.68 GB/s

-

ECC Memory Support

No

Graphics Card Parameters

true

Integrated Graphics

-

Miscellaneous

AMD Ryzen 9 7900X

Official Website

AMD Ryzen 7 3800XT

5.0

PCIe Version

4.0

24

PCIe Lanes

24

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