AMD Ryzen 9 8940HX vs AMD Ryzen 9 9955HX — Spécifications, performances, tests

Differences
Spécifications Benchmarks Témoignages

Differences

Raisons de considérer
AMD Ryzen 9 8940HX

Signaler un bogue

Raisons de considérer
AMD Ryzen 9 9955HX

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 2 % higher specified turbo frequency

5.4 GHz 5.3 GHz

Spécifications

Données techniques

AMD Ryzen 9 8940HX

AMD Ryzen 9 9955HX

CPU famille et groupe

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

Série

Ryzen Ryzen
Form Factor

Laptops / Desktops Laptops / Desktops
Segment

Mobile Mobile
Series

Ryzen 8000 Series Ryzen 9000 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.

Base Frequency

2.4 GHz 2.5 GHz
Cœurs de CPU

16 16
Fils de processeur

32 32
Max. Boost Clock

5.3 GHz 5.4 GHz
Overclocking

Oui 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.

GPU Frequency

2200 MHz 2200 MHz
Nom du GPU

AMD Radeon 610M AMD Radeon 610M
Graphics Cores

2 2

Spécifications de la mémoire et PCI

Types, canal quantité de RAM supportée par AMD Ryzen 9 9955HX et AMD Ryzen 9 8940HX. Selon les cartes mères, des fréquences de mémoire supérieures ou inférieures peuvent être prises en charge.

Canaux de mémoire

2 2
Type de mémoire

DDR5 DDR5
PCIe

PCIe 5.0 PCIe 5.0

Consommation d'énergie

Comparez les exigences du TDP AMD Ryzen 9 8940HX et AMD Ryzen 9 9955HX Power specifications describe different manufacturer limits. TDP, base power and maximum turbo power are separate values; they do not establish measured system consumption.

Configurable TDP

55-75 W 55-75 W
Default TDP

55 W 55 W
Maximum Operating Temperature

100 °C 100 °C

Technologies et extensions

Architecture, interfaces, instructions supplémentaires supportées par AMD Ryzen 9 8940HX et AMD Ryzen 9 9955HX, les technologies des machines virtuelles et la technologie des processus.

Codename

Dragon Range Fire Range
L2-Cache

16 MB 16 MB
L3-Cache

64 MB 64 MB
Date de sortie

2025-04-23 2025
Socket

FL1 FL1
Processus technologique

TSMC 5nm FinFET TSMC 4nm FinFET
Availability window (manufacturer)

- First half of 2025
Date evidence scope

- Manufacturer-announced OEM/board availability window; exact first shipment is not established by this source.

Benchmarks

Tests de performance CPUs

Shared tests with results for both models: 2

Blender Cycles

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

Test and settings	AMD Ryzen 9 8940HX	AMD Ryzen 9 9955HX	Result difference¹
Blender 5.2.0 / CPU / Windows	486.779796 samples/min Submissions: 14	637.665491 samples/min Submissions: 24	+31.0 %
Blender 5.1.1 / CPU / Windows	467.137226 samples/min Submissions: 10	604.902745 samples/min Submissions: 5	+29.5 %

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.

AMD Ryzen 9 8940HX

Blender 5.1.0 / CPU / Windows 444.767794 samples/min

AMD Ryzen 9 9955HX

Blender 4.2.0 / CPU / Windows 540.764596 samples/min
Blender 4.4.0 / CPU / Windows 515.911184 samples/min
Blender 4.5.0 / CPU / Windows 553.377444 samples/min

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 / 16 threads / windows

Model	Result	Reported conditions
AMD Ryzen 9 9955HX	11943.578535 H/s	RandomX / XMRig 6.26.0 / 1M / 16 threads / windows System RAM: 32 GB OS: Windows NT 10.0 Motherboard: LENOVO / LNVNB161216 Duration: 83.727 s User-submitted run; tuning and power settings are incomplete.