AMD Ryzen 9 7900X vs Intel Core i7 6900K

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We compared two desktop CPUs: AMD Ryzen 9 7900X with 12 cores 4.7GHz and Intel Core i7 6900K with 8 cores 3.2GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

AMD Ryzen 9 7900X 's Advantages

Released 6 years and 4 months late

Integrated graphics card

Higher specification of memory (DDR5-5200 vs DDR4-2133)

Larger memory bandwidth (83.2GB/s vs 76.8GB/s)

Newer PCIe version (5.0 vs 3.0)

Higher base frequency (4.7GHz vs 3.2GHz)

Larger L3 cache size (64MB vs 20MB)

Intel Core i7 6900K 's Advantages

Lower TDP (140W vs 170W)

Score

Benchmark

Cinebench R23 Single Core

AMD Ryzen 9 7900X +76%

2033

Intel Core i7 6900K

1151

Cinebench R23 Multi Core

AMD Ryzen 9 7900X +158%

29242

Intel Core i7 6900K

11326

Geekbench 6 Single Core

AMD Ryzen 9 7900X +128%

2942

Intel Core i7 6900K

1286

Geekbench 6 Multi Core

AMD Ryzen 9 7900X +155%

19092

Intel Core i7 6900K

7470

Blender

AMD Ryzen 9 7900X +209%

406

Intel Core i7 6900K

131

Geekbench 5 Single Core

AMD Ryzen 9 7900X +136%

2277

Intel Core i7 6900K

961

Geekbench 5 Multi Core

AMD Ryzen 9 7900X +179%

20503

Intel Core i7 6900K

7327

Passmark CPU Single Core

AMD Ryzen 9 7900X +86%

4317

Intel Core i7 6900K

2310

Passmark CPU Multi Core

AMD Ryzen 9 7900X +264%

52013

Intel Core i7 6900K

14258

AMD Ryzen 9 7900X

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Intel Core i7 6900K

General Parameters

Sep 2022

Release Date

May 2016

AMD

Manufacturer

Intel

Desktop

Type

Desktop

x86-64

Instruction Set

x86-64

Raphael

Core Architecture

Broadwell E

-

Processor Number

i7-6900K

AM5

Socket

LGA-2011-3

AMD Radeon™ Graphics

Integrated Graphics

N/A

Package

5 nm

Manufacturing Process

14 nm

AM5

Socket

LGA-2011-3

170 W

Power Consumption

140 W

95 °C

Peak Operating Temperature

-

CPU Performance

12

Performance Cores

8

24

Performance Core Threads

16

4.7 GHz

Performance Core Base Frequency

3.2 GHz

5.6 GHz

Performance Core Turbo Frequency

3.7 GHz

12

Total Core Count

8

24

Total Thread Count

16

100 MHz

Bus Frequency

100 MHz

47x

Multiplier

32x

-

L1 Cache

64 K per core

12 MB shared

L2 Cache

256 K per core

64 MB shared

L3 Cache

20 MB shared

Yes

Unlocked Multiplier

No

Memory Parameters

DDR5-5200

Memory Types

DDR4-2133

128 GB

Max Memory Size

128 GB

2

Max Memory Channels

4

83.2 GB/s

Max Memory Bandwidth

76.8 GB/s

-

ECC Memory Support

No

Graphics Card Parameters

true

Integrated Graphics

-

Miscellaneous

AMD Ryzen 9 7900X

Official Website

Intel Core i7 6900K

5.0

PCIe Version

3.0

24

PCIe Lanes

40

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