Intel Core i9 12900 vs AMD Ryzen 7 3800X

VS

Intel Core i9 12900

AMD Ryzen 7 3800X

We compared two desktop CPUs: Intel Core i9 12900 with 16 cores 2.4GHz and AMD Ryzen 7 3800X 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 i9 12900 's Advantages

Released 2 years and 6 months late

Higher specification of memory (4800 vs 3200)

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

Newer PCIe version (5 vs 4.0)

Lower TDP (65W vs 105W)

AMD Ryzen 7 3800X 's Advantages

Higher base frequency (3.9GHz vs 2.4GHz)

Larger L3 cache size (32MB vs 30MB)

More modern manufacturing process (7nm vs 10nm)

Score

Benchmark

Cinebench R23 Single Core

Intel Core i9 12900 +48%

1988

AMD Ryzen 7 3800X

1340

Cinebench R23 Multi Core

Intel Core i9 12900 +91%

26454

AMD Ryzen 7 3800X

13812

Geekbench 6 Single Core

Intel Core i9 12900 +56%

2727

AMD Ryzen 7 3800X

1743

Geekbench 6 Multi Core

Intel Core i9 12900 +55%

13396

AMD Ryzen 7 3800X

8625

Intel Core i9 12900

VS

AMD Ryzen 7 3800X

General Parameters

Jan 2022

Release Date

Jul 2019

Intel

Manufacturer

Amd

Desktop

Type

Desktop

-

Instruction Set

x86-64

Alder Lake-S

Core Architecture

Zen 2

Intel Socket 1700

Socket

AM4

UHD Graphics 770

Integrated Graphics

No

Core i9 (Alder Lake-S)

Generation

-

Package

-

Transistor Count

3.8 billions

10 nm

Manufacturing Process

7 nm

65 W

Power Consumption

105 W

72 °C

Peak Operating Temperature

95°C

Intel

Foundry

-

215 mm²

Die Size

-

CPU Performance

8

Performance Cores

8

16

Performance Core Threads

16

2.4 GHz

Performance Core Base Frequency

3.9 GHz

5.1 GHz

Performance Core Turbo Frequency

4.5 GHz

8

Efficiency Cores

-

8

Efficiency Core Threads

-

1800 MHz

Efficiency Core Base Frequency

-

3.8 GHz

Efficiency Core Turbo Frequency

-

16

Total Core Count

8

24

Total Thread Count

16

100 MHz

Bus Frequency

100 MHz

24.0

Multiplier

39x

80 KB per core

L1 Cache

64 K per core

1.25 MB per core

L2 Cache

512 K per core

30 MB shared

L3 Cache

32 MB shared

Yes

Unlocked Multiplier

Yes

1

SMP

-

Memory Parameters

DDR4-3200, DDR5-4800

Memory Types

DDR4-3200

-

Max Memory Size

128 GB

2

Max Memory Channels

2

76.8 GB/s

Max Memory Bandwidth

47.68 GB/s

No

ECC Memory Support

Yes

Miscellaneous

-

Official Website

AMD Ryzen 7 3800X

5

PCIe Version

4.0

20

PCIe Lanes

16

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