AMD Ryzen 9 9955HX vs AMD Ryzen 7 7840HS — Spécifications, performances, tests

Differences
Spécifications Benchmarks Témoignages

Differences

Raisons de considérer
AMD Ryzen 9 9955HX

Signaler un bogue

Plus grand nombre de cœurs

8 more cores

16 8
Vitesse d'horloge turbo plus élevée

Autour de 6% higher specified turbo frequency

5.4 GHz 5.1 GHz

Raisons de considérer
AMD Ryzen 7 7840HS

Signaler un bogue

Place dans le classement général

(sur la base de plusieurs critères de référence)

49 place
Vitesse d'horloge plus élevée

Autour de 52% une meilleure vitesse d'horloge

3.8 GHz 2.5 GHz

Positions dans tous les classements

Positions communes AMD Ryzen 7 7840HS CPU dans des benchmarks populaires, pour comparaison avec d'autres modèles.

Cinebench R23 (Single-Core)

27 place
Cinebench R23 (Multi-Core)

54 place
Geekbench 5, 64bit (Single-Core)

27 place
Geekbench 5, 64bit (Multi-Core)

84 place
iGPU - FP32 Performance (Single-precision GFLOPS)

13 place
Estimated results for PassMark CPU Mark

65 place
Geekbench 6 (Single-Core)

15 place
Geekbench 6 (Multi-Core)

20 place

Spécifications

Données techniques

AMD Ryzen 9 9955HX

AMD Ryzen 7 7840HS

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 9000 Series Ryzen 7000 Series
Groupe de CPU

- AMD Ryzen 7040
Génération

- 6

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

2.5 GHz 3.8 GHz
Cœurs de CPU

16 8
Fils de processeur

32 16
Max. Boost Clock

5.4 GHz 5.1 GHz
Overclocking

Oui Non
Architecture de base

- normal
Core Configuration

- 8x Zen 4
Hyperthreading / SMT

- Oui
Turbo Frequency (1 Core)

- 5.1 GHz

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 2700 MHz
Nom du GPU

AMD Radeon 610M AMD Radeon 780M
Graphics Cores

2 12
DirectX Version

- 12
Unités d'exécution

- 12
Génération

- 10
GPU Turbo

- 2700 MHz
Max. displays

- 4
Max. GPU Memory

- 32 GB
Date de sortie

- Q1/2023
Shader

- 768
Processus technologique

- 4 nm

Prise en charge des codecs matériels

Codecs intégrés utilisés pour coder et décoder le contenu. Accélère considérablement les opérations requises.

AV1

- Decode / Encode
H.264 / AVC

- Conflicting source values: Decode | Decode / Encode
h265 / HEVC (8 bit)

- Decode / Encode
h265 / HEVC (10 bit)

- Decode / Encode
JPEG

- Decode / Encode
VC-1

- Decode
VP8

- Decode
VP9

- Decode

Spécifications de la mémoire et PCI

Types, canal quantité de RAM supportée par AMD Ryzen 7 7840HS et AMD Ryzen 9 9955HX. 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 (FP7r2) / LPDDR5X (FP7-FP8)
PCIe

PCIe 5.0 PCIe 4.0
ECC

- Oui
Max. Mémoire

- 256 GB
Memory Bandwidth

- 89.6 GB/s

Cryptage

AES-NI

- Oui

Consommation d'énergie

Comparez les exigences du TDP AMD Ryzen 9 9955HX et AMD Ryzen 7 7840HS 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 35-54 W
Default TDP

55 W 35-54 W
Maximum Operating Temperature

100 °C 100 °C
TDP (PL1 / PBP, legacy combined label)

- 54 W
TDP down

- 35 W

Technologies et extensions

Architecture, interfaces, instructions supplémentaires supportées par AMD Ryzen 9 9955HX et AMD Ryzen 7 7840HS, les technologies des machines virtuelles et la technologie des processus.

Availability window (manufacturer)

First half of 2025 -
Codename

Fire Range Phoenix
Date evidence scope

Manufacturer-announced OEM/board availability window; exact first shipment is not established by this source. -
L2-Cache

16 MB 8 MB
L3-Cache

64 MB 16 MB
Date de sortie

2025 Q4/2023
Socket

FL1 FP7 / FP7r2 / FP8
Processus technologique

TSMC 4nm FinFET TSMC 4nm FinFET
Architecture

- Phoenix (Zen 4)
Chip design

- Monolithic
spécification

- Technical data sheet
Jeu d'instructions (ISA)

- x86-64 (64 bit)
Extensions ISA

- SSE4a, SSE4.1, SSE4.2,FMA3, AVX2, AVX512
Operating systems

- Windows 10, Windows 11, Linux
Part Number

- 100-000001129
Virtualization

- AMD-V, SVM

Benchmarks

Tests de performance CPUs

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 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
Blender 5.1.1 / CPU / Windows 604.902745 samples/min
Blender 5.2.0 / CPU / Windows 637.665491 samples/min

AMD Ryzen 7 7840HS

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.

Cinebench 2024 / multiple threads

Model	Result	Reported conditions
AMD Ryzen 7 7840HS	923 points	System: Acemagic AM18 CPU / power label: R7 7840HS 54 W / 45 W Graphics: Radeon 780M RAM: 32 GB Exact test build and complete conditions are unreported; no ranking position.

Cinebench 2024 / single thread

Model	Result	Reported conditions
AMD Ryzen 7 7840HS	104 points	System: Acemagic AM18 CPU / power label: R7 7840HS 54 W / 45 W Graphics: Radeon 780M RAM: 32 GB Exact test build and complete conditions are unreported; no ranking position.

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.

Cinebench R23 / multiple threads

Model	Result	Reported conditions
AMD Ryzen 7 7840HS	15979 points	System: Acemagic AM18 CPU / power label: R7 7840HS 54 W / 45 W Graphics: Radeon 780M RAM: 32 GB Exact test build and complete conditions are unreported; no ranking position.

Cinebench R23 / single thread

Model	Result	Reported conditions
AMD Ryzen 7 7840HS	1737 points	System: Acemagic AM18 CPU / power label: R7 7840HS 54 W / 45 W Graphics: Radeon 780M RAM: 32 GB Exact test build and complete conditions are unreported; no ranking position.

Cinebench R20 / multiple threads

Model	Result	Reported conditions
AMD Ryzen 7 7840HS	6250 points	System: Acemagic AM18 CPU / power label: R7 7840HS 54 W / 45 W Graphics: Radeon 780M RAM: 32 GB Exact test build and complete conditions are unreported; no ranking position.

Cinebench R20 / single thread

Model	Result	Reported conditions
AMD Ryzen 7 7840HS	673 points	System: Acemagic AM18 CPU / power label: R7 7840HS 54 W / 45 W Graphics: Radeon 780M RAM: 32 GB Exact test build and complete conditions are unreported; no ranking position.

Cinebench R15 / multiple threads

Model	Result	Reported conditions
AMD Ryzen 7 7840HS	2505 points	System: Acemagic AM18 CPU / power label: R7 7840HS 54 W / 45 W Graphics: Radeon 780M RAM: 32 GB Exact test build and complete conditions are unreported; no ranking position.

Cinebench R15 / single thread

Model	Result	Reported conditions
AMD Ryzen 7 7840HS	274 points	System: Acemagic AM18 CPU / power label: R7 7840HS 54 W / 45 W Graphics: Radeon 780M RAM: 32 GB Exact test build and complete conditions are unreported; no ranking position.