Intel Core i7 7820X vs AMD Ryzen 7 3800XT

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We compared two desktop CPUs: Intel Core i7 7820X with 8 cores 3.6GHz 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

Intel Core i7 7820X 's Advantages

Larger memory bandwidth (79.47GB/s vs 47.68GB/s)

AMD Ryzen 7 3800XT 's Advantages

Released 3 years and 2 months late

Higher specification of memory (DDR4-3200 vs DDR4-2666)

Newer PCIe version (4.0 vs 3.0)

Higher base frequency (3.9GHz vs 3.6GHz)

Larger L3 cache size (32MB vs 11MB)

Lower TDP (105W vs 140W)

Score

Benchmark

Cinebench R23 Single Core

Intel Core i7 7820X

1338

AMD Ryzen 7 3800XT +1%

1352

Cinebench R23 Multi Core

Intel Core i7 7820X +3%

13358

AMD Ryzen 7 3800XT

12960

Geekbench 6 Single Core

Intel Core i7 7820X

1252

AMD Ryzen 7 3800XT +34%

1679

Geekbench 6 Multi Core

Intel Core i7 7820X +18%

7510

AMD Ryzen 7 3800XT

6343

Geekbench 5 Single Core

Intel Core i7 7820X

1120

AMD Ryzen 7 3800XT +17%

1319

Geekbench 5 Multi Core

Intel Core i7 7820X

8504

AMD Ryzen 7 3800XT +9%

9327

Passmark CPU Single Core

Intel Core i7 7820X

2536

AMD Ryzen 7 3800XT +10%

2793

Passmark CPU Multi Core

Intel Core i7 7820X

17189

AMD Ryzen 7 3800XT +36%

23540

Intel Core i7 7820X

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AMD Ryzen 7 3800XT

General Parameters

May 2017

Release Date

Jul 2020

Intel

Manufacturer

AMD

Desktop

Type

Desktop

x86-64

Instruction Set

x86-64

Skylake

Core Architecture

Zen 2

i7-7820X

Processor Number

-

LGA-2066

Socket

AM4

N/A

Integrated Graphics

N/A

Package

-

Transistor Count

3.8 billions

14 nm

Manufacturing Process

7 nm

LGA-2066

Socket

AM4

140 W

Power Consumption

105 W

99 °C

Peak Operating Temperature

95 °C

CPU Performance

8

Performance Cores

8

16

Performance Core Threads

16

3.6 GHz

Performance Core Base Frequency

3.9 GHz

4.3 GHz

Performance Core Turbo Frequency

4.7 GHz

8

Total Core Count

8

16

Total Thread Count

16

100 MHz

Bus Frequency

100 MHz

36x

Multiplier

39x

64 K per core

L1 Cache

64 K per core

1 MB per core

L2 Cache

512 K per core

11 MB shared

L3 Cache

32 MB shared

Yes

Unlocked Multiplier

Yes

Memory Parameters

DDR4-2666

Memory Types

DDR4-3200

128 GB

Max Memory Size

128 GB

4

Max Memory Channels

2

79.47 GB/s

Max Memory Bandwidth

47.68 GB/s

No

ECC Memory Support

No

Miscellaneous

Intel Core i7 7820X

Official Website

AMD Ryzen 7 3800XT

3.0

PCIe Version

4.0

28

PCIe Lanes

24

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

Extended Instruction Set

-

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