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Core Ultra 7 251HX vs Core Ultra 9 285H

VS

Performance score

Core Ultra 7 251HX 2026 · 18/18 cores/threads
55.34 +4%
Core Ultra 9 285H 2025 · 16/16 cores/threads, 45 W
53.36

By our estimate, Core Ultra 7 251HX beats Core Ultra 9 285H by 4%.

The score is our own estimate from the specs (cores, threads, clocks, architecture generation), not a benchmark run. 100 = the fastest CPU in our database.

Real tests

What the test measures

Blender is a popular free 3D graphics program. The test makes the device render three ready-made 3D scenes (light, shadows, reflections) and counts how many render passes it finishes per minute. The higher the number, the faster the device handles heavy work: 3D, video editing, photo processing. On a CPU the test loads all cores at once, so it shows the chip's full power; on a graphics card it shows its compute strength.

CPU rendering (Blender)

faster than 76% of tested · runs: 54

Median of real test runs on users' computers. It does not show FPS in games. Data updated: 31.10.2026.

Overview

Core Ultra 7 251HXCore Ultra 9 285H
Score (0–100) 55.34 53.36
Ranking position 47 55
Power efficiency (0–100) no data 61.97
Type Laptop Laptop
Manufacturer Intel Intel
Architecture Arrow Lake Arrow Lake
Release date Q2 2026 Q1 2025

Specifications

Core Ultra 7 251HXCore Ultra 9 285H
Cores 18 16
Threads 18 16
P + E cores 6 + 12 6 + 10
Base clock no data 2.9 GHz
Boost clock 5.1 GHz 5.4 GHz
L3 cache 30 MB 24 MB
Process node no data TSMC N3B
Unlocked multiplier no no
Integrated graphics no Intel Arc 140T
NPU (AI accelerator) no 13 TOPS

Compatibility

Core Ultra 7 251HXCore Ultra 9 285H
Socket no data FCBGA2049
TDP no data 45 W
Max temperature no data 110 °C

Memory and PCI Express

Core Ultra 7 251HXCore Ultra 9 285H
Memory type no data LPDDR5/X-8400, DDR5-6400
Memory channels no data 2
Max memory no data 128 GB
PCI Express version no data 5.0
PCIe lanes no data 28

Pros and cons

Core Ultra 7 251HX

  • 4% higher overall score
  • more cores: 18 vs 16
  • more threads: 18 vs 16
  • bigger L3 cache: 30 MB vs 24 MB
  • newer: released in 2026

Core Ultra 9 285H

  • 6% faster single core
  • has integrated graphics (Intel Arc 140T)

Other comparisons

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