AMD Ryzen 9 7900X vs Intel Core i5 8400

VS

AMD Ryzen 9 7900X

Intel Core i5 8400

We compared two desktop CPUs: AMD Ryzen 9 7900X with 12 cores 4.7GHz and Intel Core i5 8400 with 6 cores 2.8GHz . 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 4 years and 11 months late

Higher specification of memory (5200 vs 2666)

Larger memory bandwidth (83.2GB/s vs 41.6GB/s)

Newer PCIe version (5.0 vs 3.0)

Higher base frequency (4.7GHz vs 2.8GHz)

Larger L3 cache size (64MB vs 9MB)

More modern manufacturing process (5nm vs 14nm)

Intel Core i5 8400 's Advantages

Lower TDP (65W vs 170W)

Score

Benchmark

Cinebench R23 Single Core

AMD Ryzen 9 7900X +98%

2033

Intel Core i5 8400

1026

Cinebench R23 Multi Core

AMD Ryzen 9 7900X +404%

29242

Intel Core i5 8400

5798

Geekbench 6 Single Core

AMD Ryzen 9 7900X +126%

2942

Intel Core i5 8400

1298

Geekbench 6 Multi Core

AMD Ryzen 9 7900X +308%

19092

Intel Core i5 8400

4677

Blender

AMD Ryzen 9 7900X +389%

406

Intel Core i5 8400

83

Geekbench 5 Single Core

AMD Ryzen 9 7900X +120%

2277

Intel Core i5 8400

1032

Geekbench 5 Multi Core

AMD Ryzen 9 7900X +344%

20503

Intel Core i5 8400

4611

Passmark CPU Single Core

AMD Ryzen 9 7900X +80%

4317

Intel Core i5 8400

2387

Passmark CPU Multi Core

AMD Ryzen 9 7900X +464%

52013

Intel Core i5 8400

9214

AMD Ryzen 9 7900X

VS

Intel Core i5 8400

General Parameters

Sep 2022

Release Date

Oct 2017

AMD

Manufacturer

Intel

Desktop

Type

Desktop

x86-64

Instruction Set

x86-64

Raphael

Core Architecture

Coffee Lake

-

Processor Number

i5-8400

AM5

Socket

LGA-1151

AMD Radeon™ Graphics

Integrated Graphics

UHD Graphics 630

Package

5 nm

Manufacturing Process

14 nm

170 W

Power Consumption

65 W

95 °C

Peak Operating Temperature

100 °C

CPU Performance

12

Performance Cores

6

24

Performance Core Threads

6

4.7 GHz

Performance Core Base Frequency

2.8 GHz

5.6 GHz

Performance Core Turbo Frequency

4 GHz

12

Total Core Count

6

24

Total Thread Count

6

100 MHz

Bus Frequency

100 MHz

47x

Multiplier

28x

-

L1 Cache

64 K per core

12 MB shared

L2 Cache

256 K per core

64 MB shared

L3 Cache

9 MB shared

Yes

Unlocked Multiplier

No

Memory Parameters

DDR5-5200

Memory Types

DDR4-2666

128 GB

Max Memory Size

128 GB

2

Max Memory Channels

2

83.2 GB/s

Max Memory Bandwidth

41.6 GB/s

-

ECC Memory Support

No

Graphics Card Parameters

true

Integrated Graphics

true

-

GPU Base Frequency

350 MHz

-

GPU Max Dynamic Frequency

1050 MHz

-

Shader Units

192

-

Texture Units

24

-

Raster Operation Units

3

-

Execution Units

24

-

Power Consumption

15 W

-

Max Resolution

4096x2304 - 60 Hz

-

Graphics Performance

0.38 TFLOPS

Miscellaneous

AMD Ryzen 9 7900X

Official Website

Intel Core i5 8400

5.0

PCIe Version

3.0

24

PCIe Lanes

16

-

Extended Instruction Set

SSE4.1, SSE4.2, AVX-2

Related CPU Comparisons

1

AMD Ryzen 9 7900X vs Intel Core Ultra 9 285K

2

AMD Ryzen 9 7900X vs Intel Core i7 14700T

3

AMD Ryzen 9 7900X vs Intel Core i5 8600

4

AMD Ryzen 9 7900X vs Intel Core i9 11900

5

AMD Ryzen 9 7900X vs AMD Ryzen 7 2700X

6

AMD Ryzen 9 7900X vs Intel Core i3 12100TE

7

AMD Ryzen 9 7900X vs AMD Ryzen 5 2500X

8

AMD Ryzen 9 7900X vs AMD Ryzen 5 3600

9

AMD Ryzen 9 7900X vs AMD Ryzen 9 3900X

10

AMD Ryzen 9 7900X vs AMD Ryzen 5 8400F

Related News

1

AMD's Thunderous Strike: Ryzen 9 9950X3D Performance Scores Revealed for the First Time!

2

Continuous Decline in DRAM Memory Prices: Downward Trend Intensifies

3

NVIDIA GB202 Chip Unveiled for the First Time, to be Used in RTX 5090 with 512-bit GDDR7 Memory

4

Strix Halo Integrated Graphics Score Appears on Passmark, Currently Slightly Below RTX 3060 12GB

5

AMD Unveils New RX 9070 XT Graphics Card Performance: Positioned Between RX 7900 GRE and RX 7900 XT

6

Double the Excitement! AMD FSR 4.0 to Launch Alongside RX 9070 XT Graphics Card

7

CPU-Z Minor Update: Support for Intel's Four New Products and New Memory

8

CXMT Reportedly Achieves 80% Yield in DDR5 Production

9

Intel Wildcat Lake Appears on Shipping List with FCBGA1516 Socket, Poised to Replace Alder Lake-N

10

The Commencement of ARM and Qualcomm Licensing Dispute Trial: Potential Major Impact on PC Market