Intel Core i7 6800K vs AMD Ryzen 9 5900

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We compared two desktop CPUs: Intel Core i7 6800K with 6 cores 3.4GHz and AMD Ryzen 9 5900 with 12 cores 3.0GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

Intel Core i7 6800K's Advantages

Larger memory bandwidth (76.8GB/s vs 51.2GB/s)

Higher base frequency (3.4GHz vs 3.0GHz)

AMD Ryzen 9 5900's Advantages

Released 4 years and 8 months late

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

Newer PCIe version (4.0 vs 3.0)

Larger L3 cache size (32MB vs 15MB)

Lower TDP (65W vs 140W)

Score

Benchmark

Cinebench R23 Single Core

Intel Core i7 6800K

954

AMD Ryzen 9 5900 +65%

1578

Cinebench R23 Multi Core

Intel Core i7 6800K

6695

AMD Ryzen 9 5900 +210%

20819

Geekbench 6 Single Core

Intel Core i7 6800K

1363

AMD Ryzen 9 5900 +52%

2080

Geekbench 6 Multi Core

Intel Core i7 6800K

6495

AMD Ryzen 9 5900 +50%

9774

Blender

Intel Core i7 6800K

97

AMD Ryzen 9 5900 +163%

256

Geekbench 5 Single Core

Intel Core i7 6800K

922

AMD Ryzen 9 5900 +86%

1715

Geekbench 5 Multi Core

Intel Core i7 6800K

5537

AMD Ryzen 9 5900 +135%

13017

Passmark CPU Single Core

Intel Core i7 6800K

2269

AMD Ryzen 9 5900 +51%

3447

Passmark CPU Multi Core

Intel Core i7 6800K

10740

AMD Ryzen 9 5900 +221%

34510

Intel Core i7 6800K

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AMD Ryzen 9 5900

General Parameters

May 2016

Release Date

Jan 2021

Intel

Manufacturer

AMD

Desktop

Type

Desktop

x86-64

Instruction Set

x86-64

Broadwell E

Core Architecture

Vermeer

i7-6800K

Processor Number

-

LGA-2011-3

Socket

AM4

N/A

Integrated Graphics

N/A

Package

14 nm

Manufacturing Process

7 nm

LGA-2011-3

Socket

AM4

140 W

Power Consumption

65 W

-

Peak Operating Temperature

95 °C

CPU Performance

6

Performance Cores

12

Performance Core Threads

24

3.4 GHz

Performance Core Base Frequency

3.0 GHz

3.6 GHz

Performance Core Turbo Frequency

4.7 GHz

6

Total Core Count

12

Total Thread Count

24

100MHz

Bus Frequency

100MHz

34x

Multiplier

30x

32K per core

L1 Cache

64K per core

256K per core

L2 Cache

512K per core

15MB shared

L3 Cache

32MB shared

No

Unlocked Multiplier

Yes

Memory Parameters

DDR4-2133

Memory Types

DDR4-3200

128GB

Max Memory Size

128GB

4

Max Memory Channels

2

76.8 GB/s

Max Memory Bandwidth

51.2 GB/s

No

ECC Memory Support

Yes

Miscellaneous

Intel Core i7 6800K

Official Website

AMD Ryzen 9 5900

3.0

PCIe Version

4.0

28

PCIe Lanes

20

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