Intel Core i7 6900K vs AMD Ryzen 7 3800XT

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We compared two desktop CPUs: Intel Core i7 6900K with 8 cores 3.2GHz 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 6900K 's Advantages

Larger memory bandwidth (76.8GB/s vs 47.68GB/s)

AMD Ryzen 7 3800XT 's Advantages

Released 4 years and 2 months late

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

Newer PCIe version (4.0 vs 3.0)

Higher base frequency (3.9GHz vs 3.2GHz)

Larger L3 cache size (32MB vs 20MB)

Lower TDP (105W vs 140W)

Score

Benchmark

Cinebench R23 Single Core

Intel Core i7 6900K

1151

AMD Ryzen 7 3800XT +17%

1352

Cinebench R23 Multi Core

Intel Core i7 6900K

11326

AMD Ryzen 7 3800XT +14%

12960

Geekbench 6 Single Core

Intel Core i7 6900K

1286

AMD Ryzen 7 3800XT +30%

1679

Geekbench 6 Multi Core

Intel Core i7 6900K +17%

7470

AMD Ryzen 7 3800XT

6343

Blender

Intel Core i7 6900K

131

AMD Ryzen 7 3800XT +47%

193

Geekbench 5 Single Core

Intel Core i7 6900K

961

AMD Ryzen 7 3800XT +37%

1319

Geekbench 5 Multi Core

Intel Core i7 6900K

7327

AMD Ryzen 7 3800XT +27%

9327

Passmark CPU Single Core

Intel Core i7 6900K

2310

AMD Ryzen 7 3800XT +20%

2793

Passmark CPU Multi Core

Intel Core i7 6900K

14258

AMD Ryzen 7 3800XT +65%

23540

Intel Core i7 6900K

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AMD Ryzen 7 3800XT

General Parameters

May 2016

Release Date

Jul 2020

Intel

Manufacturer

AMD

Desktop

Type

Desktop

x86-64

Instruction Set

x86-64

Broadwell E

Core Architecture

Zen 2

i7-6900K

Processor Number

-

LGA-2011-3

Socket

AM4

N/A

Integrated Graphics

N/A

Package

-

Transistor Count

3.8 billions

14 nm

Manufacturing Process

7 nm

LGA-2011-3

Socket

AM4

140 W

Power Consumption

105 W

-

Peak Operating Temperature

95 °C

CPU Performance

8

Performance Cores

8

16

Performance Core Threads

16

3.2 GHz

Performance Core Base Frequency

3.9 GHz

3.7 GHz

Performance Core Turbo Frequency

4.7 GHz

8

Total Core Count

8

16

Total Thread Count

16

100 MHz

Bus Frequency

100 MHz

32x

Multiplier

39x

64 K per core

L1 Cache

64 K per core

256 K per core

L2 Cache

512 K per core

20 MB shared

L3 Cache

32 MB shared

No

Unlocked Multiplier

Yes

Memory Parameters

DDR4-2133

Memory Types

DDR4-3200

128 GB

Max Memory Size

128 GB

4

Max Memory Channels

2

76.8 GB/s

Max Memory Bandwidth

47.68 GB/s

No

ECC Memory Support

No

Miscellaneous

Intel Core i7 6900K

Official Website

AMD Ryzen 7 3800XT

3.0

PCIe Version

4.0

40

PCIe Lanes

24

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