Intel Core Ultra 7 255HX vs AMD Ryzen 5 6600U

VS

Intel Core Ultra 7 255HX

AMD Ryzen 5 6600U

We compared two laptop CPUs: Intel Core Ultra 7 255HX with 20 cores 2.4GHz and AMD Ryzen 5 6600U with 6 cores 2.9GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

Intel Core Ultra 7 255HX 's Advantages

Released 3 years late

Larger memory bandwidth (102.4GB/s vs 76.8GB/s)

Newer PCIe version (5 vs 4.0)

Larger L3 cache size (24MB vs 16MB)

More modern manufacturing process (3nm vs 6nm)

AMD Ryzen 5 6600U 's Advantages

Higher specification of memory (6400 vs 6400)

Higher base frequency (2.9GHz vs 2.4GHz)

Lower TDP (28W vs 55W)

Score

Intel Core Ultra 7 255HX

VS

AMD Ryzen 5 6600U

General Parameters

Jan 2025

Release Date

Jan 2022

Intel

Manufacturer

AMD

Laptop

Type

Laptop

-

Instruction Set

x86-64

Arrow Lake

Core Architecture

Rembrandt

Intel Socket 1851

Socket

FP7

Arc Xe-LPG

Integrated Graphics

Radeon 660M

Ultra 7 (Arrow Lake)

Generation

-

Package

3 nm

Manufacturing Process

6 nm

17-55 W

Power Consumption

15-28 W

100 °C

Peak Operating Temperature

95 °C

Intel

Foundry

-

CPU Performance

8

Performance Cores

6

8

Performance Core Threads

12

2.4 GHz

Performance Core Base Frequency

2.9 GHz

5.2 GHz

Performance Core Turbo Frequency

4.5 GHz

12

Efficiency Cores

-

12

Efficiency Core Threads

-

1.8 GHz

Efficiency Core Base Frequency

-

4.5 GHz

Efficiency Core Turbo Frequency

-

20

Total Core Count

6

20

Total Thread Count

12

100 MHz

Bus Frequency

100 MHz

24

Multiplier

29x

112 KB per core

L1 Cache

64 K per core

23 MB

L2 Cache

512 K per core

24 MB shared

L3 Cache

16 MB shared

No

Unlocked Multiplier

No

1

SMP

-

Memory Parameters

DDR5-6400

Memory Types

DDR5-4800, LPDDR5-6400

256 GB

Max Memory Size

-

2

Max Memory Channels

4

102.4 GB/s

Max Memory Bandwidth

76.8 GB/s

Yes

ECC Memory Support

-

Graphics Card Parameters

true

Integrated Graphics

true

-

GPU Base Frequency

1500 MHz

1900 MHz

GPU Max Dynamic Frequency

1900 MHz

-

Shader Units

384

-

Texture Units

24

-

Raster Operation Units

16

64

Execution Units

6

-

Power Consumption

15 W

-

Graphics Performance

1.46 TFLOPS

Miscellaneous

Official Website

AMD Ryzen 5 6600U

5

PCIe Version

4.0

PCIe Lanes

-

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