AMD Ryzen 7 3800XT vs AMD Ryzen 9 7900

VS

We compared two desktop CPUs: AMD Ryzen 7 3800XT with 8 cores 3.9GHz and AMD Ryzen 9 7900 with 12 cores 3.7GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

AMD Ryzen 7 3800XT 's Advantages

Higher base frequency (3.9GHz vs 3.7GHz)

AMD Ryzen 9 7900 's Advantages

Released 2 years and 6 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)

Larger L3 cache size (64MB vs 32MB)

Lower TDP (65W vs 105W)

Score

Benchmark

Cinebench R23 Single Core

AMD Ryzen 7 3800XT

1352

AMD Ryzen 9 7900 +50%

2034

Cinebench R23 Multi Core

AMD Ryzen 7 3800XT

12960

AMD Ryzen 9 7900 +126%

29358

Geekbench 6 Single Core

AMD Ryzen 7 3800XT

1679

AMD Ryzen 9 7900 +75%

2954

Geekbench 6 Multi Core

AMD Ryzen 7 3800XT

6343

AMD Ryzen 9 7900 +177%

17582

Cinebench 2024 Single Core

AMD Ryzen 7 3800XT

81

AMD Ryzen 9 7900 +46%

119

Cinebench 2024 Multi Core

AMD Ryzen 7 3800XT

734

AMD Ryzen 9 7900 +122%

1632

Blender

AMD Ryzen 7 3800XT

193

AMD Ryzen 9 7900 +156%

496

Geekbench 5 Single Core

AMD Ryzen 7 3800XT

1319

AMD Ryzen 9 7900 +62%

2148

Geekbench 5 Multi Core

AMD Ryzen 7 3800XT

9327

AMD Ryzen 9 7900 +92%

17950

Passmark CPU Single Core

AMD Ryzen 7 3800XT

2793

AMD Ryzen 9 7900 +48%

4157

Passmark CPU Multi Core

AMD Ryzen 7 3800XT

23540

AMD Ryzen 9 7900 +107%

48850

AMD Ryzen 7 3800XT

VS

AMD Ryzen 9 7900

General Parameters

Jul 2020

Release Date

Jan 2023

AMD

Manufacturer

Amd

Desktop

Type

Desktop

x86-64

Instruction Set

x86-64

Zen 2

Core Architecture

Zen 4 (Raphael)

AM4

Socket

AM5

N/A

Integrated Graphics

Radeon Graphics (Ryzen 7000)

Package

3.8 billions

Transistor Count

13.1 billions

7 nm

Manufacturing Process

5 nm

AM4

Socket

AM5

105 W

Power Consumption

65 W

-

Max Turbo Power Consumption

142 W

95 °C

Peak Operating Temperature

95°C

CPU Performance

8

Performance Cores

12

16

Performance Core Threads

24

3.9 GHz

Performance Core Base Frequency

3.7 GHz

4.7 GHz

Performance Core Turbo Frequency

5.4 GHz

8

Total Core Count

12

16

Total Thread Count

24

100 MHz

Bus Frequency

100 MHz

39x

Multiplier

37x

64 K per core

L1 Cache

64 K per core

512 K per core

L2 Cache

1 MB per core

32 MB shared

L3 Cache

64 MB shared

Yes

Unlocked Multiplier

Yes

Memory Parameters

DDR4-3200

Memory Types

DDR5-5200

128 GB

Max Memory Size

128 GB

2

Max Memory Channels

2

47.68 GB/s

Max Memory Bandwidth

83.2 GB/s

No

ECC Memory Support

Yes

Graphics Card Parameters

-

Integrated Graphics

true

-

GPU Base Frequency

1500 MHz

-

GPU Max Dynamic Frequency

2200 MHz

-

Shader Units

448

-

Texture Units

8

-

Raster Operation Units

4

-

Execution Units

2

-

Power Consumption

15 W

-

Graphics Performance

1.43 TFLOPS

Miscellaneous

AMD Ryzen 7 3800XT

Official Website

AMD Ryzen 9 7900

4.0

PCIe Version

5.0

24

PCIe Lanes

28

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