AMD Ryzen 9 5900X vs Intel Core Ultra 7 255HX

VS

AMD Ryzen 9 5900X

Intel Core Ultra 7 255HX

We compared the desktop AMD Ryzen 9 5900X with 12 cores 3.7GHz and the laptop Intel Core Ultra 7 255HX with 20 cores 2.4GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

AMD Ryzen 9 5900X 's Advantages

Higher base frequency (3.7GHz vs 2.4GHz)

Larger L3 cache size (64MB vs 24MB)

Intel Core Ultra 7 255HX 's Advantages

Released 4 years and 3 months late

Integrated graphics card

Higher specification of memory (6400 vs 3200)

Larger memory bandwidth (102.4GB/s vs 47.68GB/s)

Newer PCIe version (5 vs 4.0)

More modern manufacturing process (3nm vs 7nm)

Lower TDP (55W vs 105W)

Score

AMD Ryzen 9 5900X

VS

Intel Core Ultra 7 255HX

General Parameters

Oct 2020

Release Date

Jan 2025

AMD

Manufacturer

Intel

Desktop

Type

Laptop

x86-64

Instruction Set

-

Zen 3 (Vermeer)

Core Architecture

Arrow Lake

AM4

Socket

Intel Socket 1851

No

Integrated Graphics

Arc Xe-LPG

-

Generation

Ultra 7 (Arrow Lake)

Package

4.15 billions

Transistor Count

-

7 nm

Manufacturing Process

3 nm

105 W

Power Consumption

17-55 W

90°C

Peak Operating Temperature

100 °C

-

Foundry

Intel

CPU Performance

12

Performance Cores

8

24

Performance Core Threads

8

3.7 GHz

Performance Core Base Frequency

2.4 GHz

4.8 GHz

Performance Core Turbo Frequency

5.2 GHz

-

Efficiency Cores

12

-

Efficiency Core Threads

12

-

Efficiency Core Base Frequency

1.8 GHz

-

Efficiency Core Turbo Frequency

4.5 GHz

12

Total Core Count

20

24

Total Thread Count

20

100 MHz

Bus Frequency

100 MHz

37x

Multiplier

24

64 K per core

L1 Cache

112 KB per core

512 K per core

L2 Cache

23 MB

64 MB shared

L3 Cache

24 MB shared

Yes

Unlocked Multiplier

No

-

SMP

1

Memory Parameters

DDR4-3200

Memory Types

DDR5-6400

128 GB

Max Memory Size

256 GB

2

Max Memory Channels

2

47.68 GB/s

Max Memory Bandwidth

102.4 GB/s

Yes

ECC Memory Support

Yes

Graphics Card Parameters

-

Integrated Graphics

true

-

GPU Max Dynamic Frequency

1900 MHz

-

Execution Units

64

Miscellaneous

AMD Ryzen 9 5900X

Official Website

4.0

PCIe Version

5

20

PCIe Lanes

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