Core Ultra 7 251HX vs Core Ultra 9 285H
Performance score
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)
Median of real test runs on users' computers. It does not show FPS in games. Data updated: 31.10.2026.
Overview
| Core Ultra 7 251HX | Core 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 251HX | Core 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 251HX | Core 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 251HX | Core 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
Visitor rating
Questions and comments
Share your experience, ask a question or tell us about a mistake on this page: Core Ultra 7 251HX / Core Ultra 9 285H.
No comments yet — be the first.