AMD Ryzen 9 3900X vs Intel Core i7 8700K

VS

AMD Ryzen 9 3900X

Intel Core i7 8700K

We compared two desktop CPUs: AMD Ryzen 9 3900X with 12 cores 3.8GHz and Intel Core i7 8700K with 6 cores 3.7GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

AMD Ryzen 9 3900X 's Advantages

Released 1 years and 9 months late

Higher specification of memory (3200 vs 2666)

Larger memory bandwidth (47.68GB/s vs 41.6GB/s)

Newer PCIe version (4.0 vs 3.0)

Higher base frequency (3.8GHz vs 3.7GHz)

Larger L3 cache size (64MB vs 12MB)

More modern manufacturing process (7nm vs 14nm)

Intel Core i7 8700K 's Advantages

Integrated graphics card

Lower TDP (95W vs 105W)

Score

Benchmark

Cinebench R23 Single Core

AMD Ryzen 9 3900X +7%

1306

Intel Core i7 8700K

1215

Cinebench R23 Multi Core

AMD Ryzen 9 3900X +111%

18454

Intel Core i7 8700K

8734

Geekbench 6 Single Core

AMD Ryzen 9 3900X +24%

1842

Intel Core i7 8700K

1475

Geekbench 6 Multi Core

AMD Ryzen 9 3900X +84%

11715

Intel Core i7 8700K

6339

Geekbench 5 Single Core

AMD Ryzen 9 3900X +6%

1319

Intel Core i7 8700K

1233

Geekbench 5 Multi Core

AMD Ryzen 9 3900X +80%

11991

Intel Core i7 8700K

6632

Passmark CPU Single Core

AMD Ryzen 9 3900X

2683

Intel Core i7 8700K +2%

2748

Passmark CPU Multi Core

AMD Ryzen 9 3900X +138%

32531

Intel Core i7 8700K

13661

AMD Ryzen 9 3900X

VS

Intel Core i7 8700K

General Parameters

Jul 2019

Release Date

Oct 2017

AMD

Manufacturer

Intel

Desktop

Type

Desktop

x86-64

Instruction Set

x86-64

Zen 2

Core Architecture

Coffee Lake

-

Processor Number

i7-8700K

AM4

Socket

LGA-1151

N/A

Integrated Graphics

UHD Graphics 630

Package

3.8 billions

Transistor Count

-

7 nm

Manufacturing Process

14 nm

105 W

Power Consumption

95 W

95 °C

Peak Operating Temperature

100 °C

CPU Performance

12

Performance Cores

6

24

Performance Core Threads

12

3.8 GHz

Performance Core Base Frequency

3.7 GHz

4.6 GHz

Performance Core Turbo Frequency

4.7 GHz

12

Total Core Count

6

24

Total Thread Count

12

100 MHz

Bus Frequency

100 MHz

38x

Multiplier

37x

64 K per core

L1 Cache

64 K per core

512 K per core

L2 Cache

256 K per core

64 MB shared

L3 Cache

12 MB shared

Yes

Unlocked Multiplier

Yes

Memory Parameters

DDR4-3200

Memory Types

DDR4-2666

128 GB

Max Memory Size

128 GB

2

Max Memory Channels

2

47.68 GB/s

Max Memory Bandwidth

41.6 GB/s

Yes

ECC Memory Support

No

Graphics Card Parameters

-

Integrated Graphics

true

-

GPU Base Frequency

350 MHz

-

GPU Max Dynamic Frequency

1200 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 3900X

Official Website

Intel Core i7 8700K

4.0

PCIe Version

3.0

16

PCIe Lanes

16

-

Extended Instruction Set

SSE4.1, SSE4.2, AVX-2

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