Intel Core Ultra 7 255HX vs AMD Ryzen 9 8945HX — Spécifications, performances, tests

Differences
Spécifications Benchmarks Témoignages

Differences

Raisons de considérer
Intel Core Ultra 7 255HX

Signaler un bogue

Plus grand nombre de cœurs

4 more cores

20 16

Raisons de considérer
AMD Ryzen 9 8945HX

Signaler un bogue

Vitesse d'horloge plus élevée

Autour de 4% une meilleure vitesse d'horloge

2.5 GHz 2.4 GHz
Vitesse d'horloge turbo plus élevée

Autour de 4 % higher specified turbo frequency

5.4 GHz 5.2 GHz

Spécifications

Données techniques

Intel Core Ultra 7 255HX

AMD Ryzen 9 8945HX

CPU famille et groupe

Informations générales sur les processeurs comparés, la série, la génération et le segment de marché.

Série

Intel Core Ultra Series 2 Ryzen
Segment

Mobile Mobile
Form Factor

- Laptops / Desktops
Series

- Ryzen 8000 Series

Caractéristiques techniques du CPU

Core counts, threads, cache and clock modes describe the CPU configuration. Performance depends on the workload and comparable measured results.

Cœurs de CPU

20 16
Fils de processeur

20 32
E-core Base Clock

1.8 GHz -
Efficient Cores

12 -
Low Power Efficient-cores

Geekbench 5 SC is a popular cross-platform performance test for desktnt la mémoire du système. -
Max. Boost Clock

5.2 GHz 5.4 GHz
P-core Base Clock

2.4 GHz -
Performance Cores

8 -
Base Frequency

- 2.5 GHz
Overclocking

- Oui

IGPU

Internal Graphics n'affecte pas les performances du CPU, il effectue le travail de la carte graphique en son absence ou sur les appareils mobiles.

Nom du GPU

Intel Graphics AMD Radeon 610M
GPU Turbo

1850 MHz -
GPU Frequency

- 2200 MHz
Graphics Cores

- 2

Spécifications de la mémoire et PCI

Types, canal quantité de RAM supportée par AMD Ryzen 9 8945HX et Intel Core Ultra 7 255HX. Selon les cartes mères, des fréquences de mémoire supérieures ou inférieures peuvent être prises en charge.

Max. Mémoire

256 GB -
Canaux de mémoire

2 2
Type de mémoire

Up to DDR5 6400 MT/s DDR5
PCIe

- PCIe 5.0

Consommation d'énergie

Comparez les exigences du TDP Intel Core Ultra 7 255HX et AMD Ryzen 9 8945HX Power specifications describe different manufacturer limits. TDP, base power and maximum turbo power are separate values; they do not establish measured system consumption.

Maximum Turbo Power

160 W -
Minimum Assured Power

45 W -
TDP (PL1 / PBP, legacy combined label)

55 W -
Configurable TDP

- 55-75 W
Default TDP

- 55 W
Maximum Operating Temperature

- 100 °C

Technologies et extensions

Architecture, interfaces, instructions supplémentaires supportées par Intel Core Ultra 7 255HX et AMD Ryzen 9 8945HX, les technologies des machines virtuelles et la technologie des processus.

L3-Cache

30 MB 64 MB
Official specification sheet

https://cdrdv2-public.intel.com/851467/Intel-Core-Ultra-Series1-Series2-Series3-Comparison.pdf -
Date de sortie

Q1/2025 2025-04-23
Socket

FCBGA2114 FL1
Codename

- Dragon Range
L2-Cache

- 16 MB
Processus technologique

- TSMC 5nm FinFET

Benchmarks

Tests de performance CPUs

Shared tests with results for both models: 3

Blender Cycles

Each row uses one Blender version, operating system and compute backend.

Test and settings	Intel Core Ultra 7 255HX	AMD Ryzen 9 8945HX	Result difference¹
Blender 5.2.0 / CPU / Windows	380.474848 samples/min Submissions: 18	514.644755 samples/min Submissions: 13	+35.3 %
Blender 5.1.1 / CPU / Windows	388.979486 samples/min Submissions: 9	537.068313 samples/min Submissions: 5	+38.1 %
Blender 5.1.0 / CPU / Windows	423.52739 samples/min Submissions: 6	505.323591 samples/min Submissions: 5	+19.3 %

¹ Difference of the second result relative to the first in that row. No percentage is calculated for different upscaling algorithms. This compares published results, not a universal performance index.

Individual model tests

These results have no shared test of both models with the same version and settings. They are shown separately without a percentage difference.

Intel Core Ultra 7 255HX

Blender 4.4.0 / CPU / Linux 390.476071 samples/min
Blender 4.4.0 / CPU / Windows 393.445339 samples/min
Blender 4.5.0 / CPU / Windows 396.987215 samples/min

AMD Ryzen 9 8945HX

Individual system tests

Results were obtained on the reported systems. Test versions and settings remain separate; incomplete conditions do not support calculated model performance differences.

RandomX / XMRig 6.26.0 / 1M / 32 threads / windows

Model	Result	Reported conditions
AMD Ryzen 9 8945HX	22125.851845 H/s	RandomX / XMRig 6.26.0 / 1M / 32 threads / windows System RAM: 32 GB OS: Windows NT 10.0 Duration: 45.196 s User-submitted run; tuning and power settings are incomplete.

RandomX / XMRig 6.25.0 / 10M / 20 threads / windows

Model	Result	Reported conditions
Intel Core Ultra 7 255HX	10096.940728 H/s	RandomX / XMRig 6.25.0 / 10M / 20 threads / windows System RAM: 32 GB OS: Windows NT 10.0 Motherboard: LENOVO / LNVNB161216 Duration: 990.399 s User-submitted run; tuning and power settings are incomplete.