AMD Ryzen 5 8400F vs Intel Core i7 7820X

VS

AMD Ryzen 5 8400F

Intel Core i7 7820X

We compared two desktop CPUs: AMD Ryzen 5 8400F with 6 cores 4.2GHz and Intel Core i7 7820X with 8 cores 3.6GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

AMD Ryzen 5 8400F 's Advantages

Released 7 years late

Higher specification of memory (5200 vs 2666)

Larger memory bandwidth (83.2GB/s vs 79.47GB/s)

Newer PCIe version (4.0 vs 3.0)

Higher base frequency (4.2GHz vs 3.6GHz)

Larger L3 cache size (16MB vs 11MB)

More modern manufacturing process (4nm vs 14nm)

Lower TDP (65W vs 140W)

Score

Benchmark

Cinebench R23 Single Core

AMD Ryzen 5 8400F +26%

1691

Intel Core i7 7820X

1338

Cinebench R23 Multi Core

AMD Ryzen 5 8400F

13361

Intel Core i7 7820X

13358

Geekbench 6 Single Core

AMD Ryzen 5 8400F +99%

2500

Intel Core i7 7820X

1252

Geekbench 6 Multi Core

AMD Ryzen 5 8400F +43%

10760

Intel Core i7 7820X

7510

Passmark CPU Single Core

AMD Ryzen 5 8400F +40%

3553

Intel Core i7 7820X

2536

Passmark CPU Multi Core

AMD Ryzen 5 8400F +34%

23127

Intel Core i7 7820X

17189

AMD Ryzen 5 8400F

VS

Intel Core i7 7820X

General Parameters

May 2024

Release Date

May 2017

Amd

Manufacturer

Intel

Desktop

Type

Desktop

x86-64

Instruction Set

x86-64

Zen 4 (Phoenix)

Core Architecture

Skylake

-

Processor Number

i7-7820X

AM5

Socket

LGA-2066

No

Integrated Graphics

N/A

Ryzen 5 (Zen 4 (Phoenix))

Generation

-

Package

25 billions

Transistor Count

-

4 nm

Manufacturing Process

14 nm

45-65 W

Power Consumption

140 W

95 °C

Peak Operating Temperature

99 °C

TSMC

Foundry

-

178 mm²

Die Size

-

CPU Performance

6

Performance Cores

8

12

Performance Core Threads

16

4.2 GHz

Performance Core Base Frequency

3.6 GHz

4.7 GHz

Performance Core Turbo Frequency

4.3 GHz

6

Total Core Count

8

12

Total Thread Count

16

100 MHz

Bus Frequency

100 MHz

42

Multiplier

36x

64 K per core

L1 Cache

64 K per core

1 MB per core

L2 Cache

1 MB per core

16 MB shared

L3 Cache

11 MB shared

Yes

Unlocked Multiplier

Yes

1

SMP

-

Memory Parameters

DDR5-5200

Memory Types

DDR4-2666

256 GB

Max Memory Size

128 GB

2

Max Memory Channels

4

83.2 GB/s

Max Memory Bandwidth

79.47 GB/s

No

ECC Memory Support

No

Miscellaneous

AMD Ryzen 5 8400F

Official Website

Intel Core i7 7820X

4.0

PCIe Version

3.0

20

PCIe Lanes

28

-

Extended Instruction Set

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

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