Home > CPU Comparison > Core Ultra 9 285HX or Ryzen 9 9955HX: what's better?

Intel Core Ultra 9 285HX vs AMD Ryzen 9 9955HX

82 out of 100
Intel Core Ultra 9 285HX
VS
82 out of 100
AMD Ryzen 9 9955HX
Intel Core Ultra 9 285HX
AMD Ryzen 9 9955HX

We compared two laptop CPUs: the 2.8 GHz Intel Core Ultra 9 285HX with 24-cores against the 2.5 GHz AMD Ryzen 9 9955HX with 16-cores. On this page, you'll find out which processor has better performance in benchmarks, games and other useful information.

  1. Review
  2. Differences
  3. Performance
  4. Specs
  5. Comments

Review

General overview and comparison of the processors
Single-Core Performance
Performance in single-threaded apps and benchmarks
Multi-Core Performance
Measure performance when all cores are involved
Power Efficiency
The efficiency score of power consumption
Integrated Graphics
iGPU capabilities for gaming and 3D-intensive tasks
NanoReview Final Score
Choose your main usage scenario to recalculate the Final Score and see which CPU suits your needs.
πŸ”Œ Usage Scenario:

Key Differences

What are the key differences between 9955HX and 285HX
Advantages of Intel Core Ultra 9 285HX
  • More powerful Arc Graphics (4-Cores) integrated graphics: 2 vs 0.6 TFLOPS
  • Supports up to 256 GB DDR5-6400 RAM
  • Has 8 more physical cores
  • More modern manufacturing process – 3 versus 4 nanometers
  • 2% higher Turbo Boost frequency (5.5 GHz vs 5.4 GHz)
Advantages of AMD Ryzen 9 9955HX
  • Has 28 MB larger L3 cache size, helping fully utilize a high-end GPU in gaming

Test in Benchmarks

Comparing the performance of CPUs across various tasks
CPU:
Core Ultra 9 285HX
vs
Ryzen 9 9955HX

Cinebench

Reputable cross-platform benchmark for high-performance processors
Cinebench 2024 (Single)
Cinebench 2024 (Multi)
Cinebench 2026 (Single) - 717
Cinebench 2026 (Multi) - 8163
Cinebench Scores (13th and 16th place)
Submit your benchmark results

GeekBench v6

The new version of this benchmark emulates common operations often used in real-world apps
Geekbench 6 (Single-Core)
Geekbench 6 (Multi-Core)
File compression 1540 MB/sec 1520 MB/sec
Clang compilation 227 Klines/sec 222.1 Klines/sec
HTML 5 Browser 483.8 pages/sec 329.3 pages/sec
PDF Renderer 592.1 Mpixels/sec 545.2 Mpixels/sec
Text processing 350.1 pages/sec 341.3 pages/sec
Background blur 90.1 images/sec 70.4 images/sec
Photo processing 161.3 images/sec 123 images/sec
Ray tracing 50.5 Mpixels/sec 53.8 Mpixels/sec
Sources: GeekBench [1], [2]

PassMark

Synthetic test that focuses on raw computational performance for low-level functions
Passmark CPU (Single-Core)
Passmark CPU (Multi-Core)
Integer math 154.3 GOps/sec 213 GOps/sec
Floating point math 193.9 GOps/sec 137 GOps/sec
Find prime numbers 457M Primes/sec 288M Primes/sec
Random string sorting 76.7M Strings/sec 78.1M Strings/sec
Data encryption 48.3 GBytes/sec 37.4 GBytes/sec
Data compression 628.2 MBytes/sec 734.3 MBytes/sec
Physics 3444 Frames/sec 2722 Frames/sec
Extended instructions 48.8B Matrices/sec 58.2B Matrices/sec
Sources: PassMark [3], [4] – 821 & 680 samples

Blender

3D rendering test that measures CPU performance in 3D modeling tasks (uses all cores)
Blender CPU

Performance Per Watt

Shows the score you get per each watt of PL1 TDP
Cinebench 2024 / Watt 40.7 PPW 27.9 PPW
Geekbench 6 Multi / Watt 382.6 PPW 259.3 PPW
Passmark CPU Mark / Watt 1028.2 PPW 750.7 PPW
Blender / Watt 9.47 PPW 7.19 PPW
These are rough calculations, as most CPUs surpass PL1 TDP wattage even in multicore workloads.

Recent User Tests

The latest benchmark tests that have been submitted by users
Intel Core Ultra 9 285HX
DateBenchmarkResult
πŸ“˜ 2025-04-19 (bikerboy80)Cinebench 2024126 / 2240
πŸ“˜ 2025-04-19 (bikerboy85)Cinebench 2024126 / 2240
Add View all (2)
AMD Ryzen 9 9955HX
DateBenchmarkResult
πŸ“˜ 2026-06-21 (Tino)Cinebench 2026717 / 8163
πŸ“˜ 2026-04-26 (Runzliger-Bert)Cinebench 2024128 / 2058
πŸ“˜ 2025-06-08 (Thebakedging)Cinebench 2024134 / 2091
Add View all (3)

Specifications

Full technical specification of Intel Core Ultra 9 285HX and AMD Ryzen 9 9955HX

General

Vendor Intel Amd
Released January 6, 2025 January 7, 2025
Type Laptop Laptop
Instruction Set x86-64 x86-64
Codename Arrow Lake Zen 5 (Fire Range)
Model number 285HX 9955HX
Integrated GPU Arc Graphics (4-Cores) Radeon 610M
Rival Equivalent - AMD Ryzen 9 9955HX - Intel Core Ultra 9 285HX
Intel CPU rating (#12th place)

CPU

Performance Cores
P-Cores 8 16
P-Threads 8 32
Base Frequency (P) 2.8 GHz 2.5 GHz
Turbo Boost Frequency (P) 5.5 GHz 5.4 GHz
Efficient Cores
E-Cores 16 -
E-Threads 16 -
Base Frequency (E) 2.1 GHz -
Turbo Boost Frequency (E) 4.6 GHz -
Total
Total Cores 24 16
Total Threads 24 32
Bus Frequency 100 MHz 100 MHz
Multiplier 28x 25x
L1 Cache 192K (per core) 80K (per core)
L2 Cache 2MB (per core) 1MB (per core)
L3 Cache 36MB (shared) 64MB (shared)
Unlocked Multiplier Yes Yes

Package

Fabrication Process 3 nm 4 nm
TDP (PL1) 45-55 W (configurable) 55-75 W (configurable)
Max. Boost TDP (PL2) 160 W 101 W
Socket FCBGA-2114 FL1
Peak Temperature 105Β°C 100Β°C
Laptop processors ranking (19th and 17th place)

iGPU

Integrated Graphics Arc Graphics (4-Cores) Radeon 610M
GPU Base Clock 300 MHz 400 MHz
GPU Boost Clock 2000 MHz 2200 MHz
Shading Units 512 128
TMUs 32 8
ROPs 16 4
Execution Units 64 2
TGP 14 W 15 W
iGPU FLOPS
Core Ultra 9 285HX +233%
2 TFLOPS
Ryzen 9 9955HX
0.6 TFLOPS
More info: Radeon 610M compared to Arc iGPU (4-Cores)

Memory Support

Memory Types - DDR5-6400 - DDR5-5600
Max. Memory Size 256 GB 96 GB
Memory Channels 2 2
Max. Memory Bandwidth 102.4 GB/s -
ECC Support Yes Yes

Misc

Official Site Intel Core Ultra 9 285HX official page AMD Ryzen 9 9955HX official page
PCI Express Version 5.0 5.0
PCI Express Lanes 24 28

Cast your vote

Choose between two processors
99 (37.8%)
163 (62.2%)
Total votes: 262

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6. AMD Ryzen 9 9955HX vs Intel Core i9 14900HX (1)
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Comments

So which CPU will you choose: AMD Ryzen 9 9955HX or Intel Core Ultra 9 285HX?
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