AMD Ryzen 9 3900X vs Intel Core i9 9900X

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We compared two desktop CPUs: AMD Ryzen 9 3900X with 12 cores 3.8GHz and Intel Core i9 9900X with 10 cores 3.5GHz . 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 9 months late

Higher specification of memory (DDR4-3200 vs DDR4-2666)

Newer PCIe version (4.0 vs 3.0)

Higher base frequency (3.8GHz vs 3.5GHz)

Larger L3 cache size (64MB vs 20MB)

Lower TDP (105W vs 165W)

Intel Core i9 9900X 's Advantages

Larger memory bandwidth (85GB/s vs 47.68GB/s)

Score

Benchmark

Cinebench R23 Single Core

AMD Ryzen 9 3900X +11%

1313

Intel Core i9 9900X

1178

Cinebench R23 Multi Core

AMD Ryzen 9 3900X +33%

18656

Intel Core i9 9900X

13952

Geekbench 6 Single Core

AMD Ryzen 9 3900X +26%

1842

Intel Core i9 9900X

1455

Geekbench 6 Multi Core

AMD Ryzen 9 3900X +14%

11715

Intel Core i9 9900X

10273

Geekbench 5 Single Core

AMD Ryzen 9 3900X +13%

1319

Intel Core i9 9900X

1165

Geekbench 5 Multi Core

AMD Ryzen 9 3900X +12%

11991

Intel Core i9 9900X

10704

Passmark CPU Single Core

AMD Ryzen 9 3900X +4%

2683

Intel Core i9 9900X

2565

Passmark CPU Multi Core

AMD Ryzen 9 3900X +48%

32531

Intel Core i9 9900X

21833

AMD Ryzen 9 3900X

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Intel Core i9 9900X

General Parameters

Jul 2019

Release Date

Oct 2018

AMD

Manufacturer

Intel

Desktop

Type

Desktop

x86-64

Instruction Set

x86-64

Zen 2

Core Architecture

Skylake

-

Processor Number

i9-9900X

AM4

Socket

LGA-2066

N/A

Integrated Graphics

N/A

Package

3.8 billions

Transistor Count

-

7 nm

Manufacturing Process

14 nm

AM4

Socket

LGA-2066

105 W

Power Consumption

165 W

95 °C

Peak Operating Temperature

92 °C

CPU Performance

12

Performance Cores

10

24

Performance Core Threads

20

3.8 GHz

Performance Core Base Frequency

3.5 GHz

4.6 GHz

Performance Core Turbo Frequency

4.4 GHz

12

Total Core Count

10

24

Total Thread Count

20

100 MHz

Bus Frequency

100 MHz

38x

Multiplier

35x

64 K per core

L1 Cache

64 K per core

512 K per core

L2 Cache

1 MB per core

64 MB shared

L3 Cache

20 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

4

47.68 GB/s

Max Memory Bandwidth

85 GB/s

Yes

ECC Memory Support

No

Miscellaneous

AMD Ryzen 9 3900X

Official Website

Intel Core i9 9900X

4.0

PCIe Version

3.0

16

PCIe Lanes

44

-

Extended Instruction Set

SSE4.1, SSE4.2, AVX-2, AVX-512

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