Intel Core Ultra 7 255HX vs AMD Ryzen 9 9955HX

相違点
 仕様ベンチマークお客様の声

相違点

考慮すべき理由
Intel Core Ultra 7 255HX

バグを報告する

より多くのコア数

4 more cores

20 16

考慮すべき理由
AMD Ryzen 9 9955HX

バグを報告する

クロックの高速化

周辺 4% クロックスピードの向上

2.5 GHz 2.4 GHz
ターボクロックの高速化

周辺 4 % higher specified turbo frequency

5.4 GHz 5.2 GHz

仕様

技術データ

Intel Core Ultra 7 255HX

AMD Ryzen 9 9955HX

CPUファミリー、グループ

比較するプロセッサの背景情報、シリーズ、世代、市場セグメント。

シリーズ

Intel Core Ultra Series 2 Ryzen
セグメント

Mobile Mobile
Form Factor

- Laptops / Desktops
Series

- Ryzen 9000 Series

CPU 技術仕様

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

CPUコア

20 16
CPUスレッド

20 32
E-core Base Clock

1.8 GHz -
Efficient Cores

12 -
Low Power Efficient-cores

0 -
Max. Boost Clock

5.2 GHz 5.4 GHz
P-core Base Clock

2.4 GHz -
Performance Cores

8 -
Base Frequency

- 2.5 GHz
オーバークロッキング

- はい

IGPU

内蔵グラフィックスは、CPUの性能に影響を与えず、グラフィックスカードがない場合やモバイルデバイスでグラフィックスカードの仕事を実行します。

GPU名

Intel Graphics AMD Radeon 610M
GPU Turbo

1850 MHz -
GPU Frequency

- 2200 MHz
Graphics Cores

- 2

メモリスペック＆PCI

サポートするRAMの種類、チャンネル数 AMD Ryzen 9 9955HX と Intel Core Ultra 7 255HX. マザーボードによっては、より高いまたは低いメモリ周波数がサポートされる場合があります。

マックスメモリ

256 GB -
メモリーチャンネル

2 2
メモリータイプ

Up to DDR5 6400 MT/s DDR5
PCIe

- PCIe 5.0

エネルギー消費量

TDPの要求事項を比較する Intel Core Ultra 7 255HX と 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.

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

技術・拡張性

アーキテクチャ、インターフェース、サポートされる追加命令 Intel Core Ultra 7 255HX と AMD Ryzen 9 9955HX, 仮想マシン技術、プロセス技術

L3-Cache

30 MB 64 MB
Official specification sheet

https://cdrdv2-public.intel.com/851467/Intel-Core-Ultra-Series1-Series2-Series3-Comparison.pdf -
発売日

Q1/2025 2025
ソケット

FCBGA2114 FL1
Availability window (manufacturer)

- First half of 2025
Codename

- Fire Range
Date evidence scope

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

- 16 MB
ぎじゅつてきなかだい

- TSMC 4nm FinFET

ベンチマーク

性能試験 CPUs

Shared tests with results for both models: 4

Blender Cycles

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

Test and settings	Intel Core Ultra 7 255HX	AMD Ryzen 9 9955HX	Result difference¹
Blender 5.2.0 / CPU / Windows	380.474848 samples/min Submissions: 18	637.665491 samples/min Submissions: 24	+67.6 %
Blender 5.1.1 / CPU / Windows	388.979486 samples/min Submissions: 9	604.902745 samples/min Submissions: 5	+55.5 %
Blender 4.5.0 / CPU / Windows	396.987215 samples/min Submissions: 37	553.377444 samples/min Submissions: 18	+39.4 %
Blender 4.4.0 / CPU / Windows	393.445339 samples/min Submissions: 12	515.911184 samples/min Submissions: 13	+31.1 %

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 5.1.0 / CPU / Windows 423.52739 samples/min

AMD Ryzen 9 9955HX

Blender 4.2.0 / CPU / Windows 540.764596 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.

Cinebench 2026 / multiple threads

Model	Result	Reported conditions
AMD Ryzen 9 9955HX	8015 points	System: Chuwi Gamebook, R9 9955HX via Chuwi CPU / power label: R9 9955HX 110 W / 110 W Graphics: GeForce RTX 5070 Ti Laptop 140 W 1515 / 1750 MHz 12 GB RAM: 32 GB Exact test build and complete conditions are unreported; no ranking position.

Cinebench 2026 / single thread

Model	Result	Reported conditions
AMD Ryzen 9 9955HX	525 points	System: Chuwi Gamebook, R9 9955HX via Chuwi CPU / power label: R9 9955HX 110 W / 110 W Graphics: GeForce RTX 5070 Ti Laptop 140 W 1515 / 1750 MHz 12 GB RAM: 32 GB Exact test build and complete conditions are unreported; no ranking position.

Cinebench 2024 / multiple threads

Model	Result	Reported conditions
AMD Ryzen 9 9955HX	1918 points	System: Chuwi Gamebook, R9 9955HX via Chuwi CPU / power label: R9 9955HX 110 W / 110 W Graphics: GeForce RTX 5070 Ti Laptop 140 W 1515 / 1750 MHz 12 GB RAM: 32 GB Exact test build and complete conditions are unreported; no ranking position.

Cinebench 2024 / single thread

Model	Result	Reported conditions
AMD Ryzen 9 9955HX	129 points	System: Chuwi Gamebook, R9 9955HX via Chuwi CPU / power label: R9 9955HX 110 W / 110 W Graphics: GeForce RTX 5070 Ti Laptop 140 W 1515 / 1750 MHz 12 GB 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.

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.

Cinebench R23 / multiple threads

Model	Result	Reported conditions
AMD Ryzen 9 9955HX	36127 points	System: Chuwi Gamebook, R9 9955HX via Chuwi CPU / power label: R9 9955HX 110 W / 110 W Graphics: GeForce RTX 5070 Ti Laptop 140 W 1515 / 1750 MHz 12 GB RAM: 32 GB Exact test build and complete conditions are unreported; no ranking position.

Cinebench R23 / single thread

Model	Result	Reported conditions
AMD Ryzen 9 9955HX	2174 points	System: Chuwi Gamebook, R9 9955HX via Chuwi CPU / power label: R9 9955HX 110 W / 110 W Graphics: GeForce RTX 5070 Ti Laptop 140 W 1515 / 1750 MHz 12 GB RAM: 32 GB Exact test build and complete conditions are unreported; no ranking position.

Cinebench R20 / multiple threads

Model	Result	Reported conditions
AMD Ryzen 9 9955HX	14186 points	System: Chuwi Gamebook, R9 9955HX via Chuwi CPU / power label: R9 9955HX 110 W / 110 W Graphics: GeForce RTX 5070 Ti Laptop 140 W 1515 / 1750 MHz 12 GB RAM: 32 GB Exact test build and complete conditions are unreported; no ranking position.

Cinebench R20 / single thread

Model	Result	Reported conditions
AMD Ryzen 9 9955HX	851 points	System: Chuwi Gamebook, R9 9955HX via Chuwi CPU / power label: R9 9955HX 110 W / 110 W Graphics: GeForce RTX 5070 Ti Laptop 140 W 1515 / 1750 MHz 12 GB RAM: 32 GB Exact test build and complete conditions are unreported; no ranking position.