AMD Ryzen 9 9955HX vs Intel Core Ultra 9 275HX
74.2Single-core74.5
82Multi-core80.6
42.2Efficiencyspec-based44.4
32.6iGPU60.5
84.3Platformspec-based73.9
7 spec wins — AMD Ryzen 9 9955HX7 spec wins — Intel Core Ultra 9 275HX
InnoReviews verdict
This one is close to a dead heat: AMD Ryzen 9 9955HX scores 69.5 against 70.6 for Intel Core Ultra 9 275HX. Pick by the categories that matter to you — Intel Core Ultra 9 275HX edges ahead in iGPU and single-core, or by price.
Which would you pick?
Key differences
Reasons to pick the AMD Ryzen 9 9955HX
- 100% higher Performance cores: 16 vs 8
- 78% higher L3 cache: 64 MB vs 36 MB
- 33% higher threads: 32 vs 24
Reasons to pick the Intel Core Ultra 9 275HX
- Stronger iGPU score: 61 vs 33
- 251% higher 3DMark Time Spy Graphics (iGPU): 1,855 vs 528
- 113% higher Max TDP: 160 W vs 75 W
- 50% higher cores: 24 vs 16
- 25% lower process: 3 nm vs 4 nm
General
| Spec | AMD Ryzen 9 9955HX | Intel Core Ultra 9 275HX |
|---|---|---|
| Announced | 2025 | 2025 |
| Process | 4 nm | 3 nm+25% |
| Base TDP | 55 W | 55 W |
| Max TDP | 75 W | 160 W+113% |
Cores & Clocks
| Spec | AMD Ryzen 9 9955HX | Intel Core Ultra 9 275HX |
|---|---|---|
| Cores | 16 | 24+50% |
| Performance cores | 16+100% | 8 |
| Efficiency cores | — | 16 |
| Threads | 32+33% | 24 |
| Base clock | 2.5 GHz | 2.7 GHz+8% |
| Boost clock | 5.4 GHz | 5.4 GHz |
| L3 cache | 64 MB+78% | 36 MB |
Integrated GPU
| Spec | AMD Ryzen 9 9955HX | Intel Core Ultra 9 275HX |
|---|---|---|
| iGPU | AMD Radeon 610M | Intel Arc Graphics (4 Xe) |
| iGPU clock | 2,200 MHz | 2,000 MHz |
Memory
| Spec | AMD Ryzen 9 9955HX | Intel Core Ultra 9 275HX |
|---|---|---|
| Memory support | DDR5-5600 | DDR5-6400 |
| Max memory | 256 GB | 256 GB |
Benchmarks
| Spec | AMD Ryzen 9 9955HX | Intel Core Ultra 9 275HX |
|---|---|---|
| Geekbench 6 (single) | 3,080+1%Top 13% | 3,042Top 14% |
| Geekbench 6 (multi) | 19,500Top 9% | 19,417Top 10% |
| Cinebench R23 (single) | 2,150Top 9% | 2,194+2%Top 4% |
| Cinebench R23 (multi) | 37,500+5%Top 2% | 35,766Top 4% |
| PassMark | 56,261+1%Top 4% | 55,684Top 4% |
| PassMark (single thread) | 4,390Top 12% | 4,701+7%Top 5% |
| 3DMark Time Spy Graphics (iGPU) | 528Bottom 15% | 1,855+251%Top 44% |
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