Intel Core Ultra 7 255HX vs AMD Ryzen 9 7945HX3D

VS

Intel Core Ultra 7 255HX

AMD Ryzen 9 7945HX3D

We compared two laptop CPUs: Intel Core Ultra 7 255HX with 20 cores 2.4GHz and AMD Ryzen 9 7945HX3D with 16 cores 2.3GHz . 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 1 years and 6 months late

Higher specification of memory (6400 vs 5200)

Larger memory bandwidth (102.4GB/s vs 83.2GB/s)

Higher base frequency (2.4GHz vs 2.3GHz)

More modern manufacturing process (3nm vs 5nm)

AMD Ryzen 9 7945HX3D 's Advantages

Larger L3 cache size (128MB vs 24MB)

Score

Intel Core Ultra 7 255HX

VS

AMD Ryzen 9 7945HX3D

General Parameters

Jan 2025

Release Date

Jul 2023

Intel

Manufacturer

AMD

Laptop

Type

Laptop

Arrow Lake

Core Architecture

Dragon Range

Intel Socket 1851

Socket

AMD Socket FL1

Arc Xe-LPG

Integrated Graphics

Radeon 610M

Ultra 7 (Arrow Lake)

Generation

Ryzen 9 (Zen 4 (Dragon Range))

Package

-

Transistor Count

17.84 billions

3 nm

Manufacturing Process

5 nm

17-55 W

Power Consumption

55 W

100 °C

Peak Operating Temperature

89 °C

Intel

Foundry

TSMC

-

Die Size

2x71 mm²

-

I/O Process Size

6 nm

-

I/O Die Size

122 mm²

CPU Performance

8

Performance Cores

-

8

Performance Core Threads

-

2.4 GHz

Performance Core Base Frequency

2.3 GHz

5.2 GHz

Performance Core Turbo Frequency

5.4 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

16

20

Total Thread Count

32

100 MHz

Bus Frequency

100 MHz

24

Multiplier

23.0

112 KB per core

L1 Cache

64 KB per core

23 MB

L2 Cache

1 MB per core

24 MB shared

L3 Cache

128 MB shared

No

Unlocked Multiplier

Yes

1

SMP

1

Memory Parameters

DDR5-6400

Memory Types

DDR5-5200

256 GB

Max Memory Size

64 GB

2

Max Memory Channels

2

102.4 GB/s

Max Memory Bandwidth

83.2 GB/s

Yes

ECC Memory Support

Yes

Graphics Card Parameters

true

Integrated Graphics

true

1900 MHz

GPU Max Dynamic Frequency

2200 MHz

64

Execution Units

2

-

Graphics Performance

0.49 TFLOPS

Miscellaneous

Official Website

AMD Ryzen 9 7945HX3D

5

PCIe Version

5

PCIe Lanes

28

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