AMD Ryzen 9 3900XT vs Intel Core i7 6700K

VS

We compared two desktop CPUs: AMD Ryzen 9 3900XT with 12 cores 3.8GHz and Intel Core i7 6700K with 4 cores 4.0GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

AMD Ryzen 9 3900XT 's Advantages

Released 4 years and 11 months late

Higher specification of memory (DDR4-3200 vs DDR4-2133)

Larger memory bandwidth (47.68GB/s vs 34.1GB/s)

Newer PCIe version (4.0 vs 3.0)

Larger L3 cache size (64MB vs 8MB)

Intel Core i7 6700K 's Advantages

Integrated graphics card

Higher base frequency (4.0GHz vs 3.8GHz)

Lower TDP (91W vs 105W)

Score

Benchmark

Cinebench R23 Single Core

AMD Ryzen 9 3900XT +19%

1352

Intel Core i7 6700K

1136

Cinebench R23 Multi Core

AMD Ryzen 9 3900XT +225%

18436

Intel Core i7 6700K

5661

Geekbench 6 Single Core

AMD Ryzen 9 3900XT +14%

1763

Intel Core i7 6700K

1544

Geekbench 6 Multi Core

AMD Ryzen 9 3900XT +109%

11025

Intel Core i7 6700K

5265

Blender

AMD Ryzen 9 3900XT +198%

287

Intel Core i7 6700K

96

Geekbench 5 Single Core

AMD Ryzen 9 3900XT +20%

1311

Intel Core i7 6700K

1087

Geekbench 5 Multi Core

AMD Ryzen 9 3900XT +187%

12279

Intel Core i7 6700K

4271

Passmark CPU Single Core

AMD Ryzen 9 3900XT +10%

2769

Intel Core i7 6700K

2510

Passmark CPU Multi Core

AMD Ryzen 9 3900XT +267%

32856

Intel Core i7 6700K

8940

AMD Ryzen 9 3900XT

VS

Intel Core i7 6700K

General Parameters

Jul 2020

Release Date

Aug 2015

Amd

Manufacturer

Intel

Desktop

Type

Desktop

x86-64

Instruction Set

x86-64

Zen 2 (Matisse)

Core Architecture

Skylake

-

Processor Number

i7-6700K

AM4

Socket

LGA-1151

No

Integrated Graphics

HD Graphics 530

Package

3.8 billions

Transistor Count

1.75 billions

7 nm

Manufacturing Process

14 nm

AM4

Socket

LGA-1151

105 W

Power Consumption

91 W

95°C

Peak Operating Temperature

-

CPU Performance

12

Performance Cores

4

24

Performance Core Threads

8

3.8 GHz

Performance Core Base Frequency

4.0 GHz

4.7 GHz

Performance Core Turbo Frequency

4.2 GHz

12

Total Core Count

4

24

Total Thread Count

8

100 MHz

Bus Frequency

100 MHz

38x

Multiplier

40x

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

8 MB shared

Yes

Unlocked Multiplier

Yes

Memory Parameters

DDR4-3200

Memory Types

DDR4-2133, DDR3L-1600

128 GB

Max Memory Size

64 GB

2

Max Memory Channels

2

47.68 GB/s

Max Memory Bandwidth

34.1 GB/s

Yes

ECC Memory Support

No

Graphics Card Parameters

-

Integrated Graphics

true

-

GPU Max Dynamic Frequency

1150 MHz

Miscellaneous

AMD Ryzen 9 3900XT

Official Website

Intel Core i7 6700K

4.0

PCIe Version

3.0

24

PCIe Lanes

16

-

Extended Instruction Set

SSE4.1, SSE4.2, AVX-2

Related CPU Comparisons

1

AMD Ryzen 9 7950X3D vs AMD Ryzen 9 3900XT

2

AMD Ryzen 9 3900XT vs AMD Ryzen 5 5500

3

AMD Ryzen 9 3900XT vs AMD Ryzen 7 5700X

4

AMD Ryzen 7 5700G vs AMD Ryzen 9 3900XT

5

AMD Ryzen 9 3900XT vs Intel Core i5 7640X

6

AMD Ryzen 9 3900XT vs AMD Ryzen 7 8700G

7

Intel Core i5 10500 vs AMD Ryzen 9 3900XT

8

Intel Core i7 6700K vs Intel Core i5 10400

9

AMD Ryzen 9 3900XT vs Intel Core i5 10400F

10

AMD Ryzen 9 3900XT vs Intel Core i3 7100