AMD Ryzen 7 6800U vs Intel Core Ultra 7 255HX

VS

AMD Ryzen 7 6800U

Intel Core Ultra 7 255HX

We compared two laptop CPUs: AMD Ryzen 7 6800U with 8 cores 2.7GHz and 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 7 6800U 's Advantages

Higher base frequency (2.7GHz vs 2.4GHz)

Lower TDP (28W vs 55W)

Intel Core Ultra 7 255HX 's Advantages

Released 3 years late

Higher specification of memory (6400 vs 6400)

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)

Score

AMD Ryzen 7 6800U

VS

Intel Core Ultra 7 255HX

General Parameters

Jan 2022

Release Date

Jan 2025

AMD

Manufacturer

Intel

Laptop

Type

Laptop

x86-64

Instruction Set

-

Rembrandt

Core Architecture

Arrow Lake

FP7

Socket

Intel Socket 1851

Radeon 680M

Integrated Graphics

Arc Xe-LPG

-

Generation

Ultra 7 (Arrow Lake)

Package

6 nm

Manufacturing Process

3 nm

15-28 W

Power Consumption

17-55 W

95 °C

Peak Operating Temperature

100 °C

-

Foundry

Intel

CPU Performance

8

Performance Cores

8

16

Performance Core Threads

8

2.7 GHz

Performance Core Base Frequency

2.4 GHz

4.7 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

8

Total Core Count

20

16

Total Thread Count

20

100 MHz

Bus Frequency

100 MHz

27x

Multiplier

24

64 K per core

L1 Cache

112 KB per core

512 K per core

L2 Cache

23 MB

16 MB shared

L3 Cache

24 MB shared

No

Unlocked Multiplier

No

-

SMP

1

Memory Parameters

DDR5-4800, LPDDR5-6400

Memory Types

DDR5-6400

-

Max Memory Size

256 GB

4

Max Memory Channels

2

76.8 GB/s

Max Memory Bandwidth

102.4 GB/s

-

ECC Memory Support

Yes

Graphics Card Parameters

true

Integrated Graphics

true

2000 MHz

GPU Base Frequency

-

2200 MHz

GPU Max Dynamic Frequency

1900 MHz

768

Shader Units

-

48

Texture Units

-

32

Raster Operation Units

-

12

Execution Units

64

15 W

Power Consumption

-

3.686 TFLOPS

Graphics Performance

-

Miscellaneous

AMD Ryzen 7 6800U

Official Website

4.0

PCIe Version

5

20

PCIe Lanes

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