AMD Ryzen 9 9955HX vs Intel Core Ultra 7 255HX
74.2Single-core72.8
82Multi-core73.8
42.2Efficiencyspec-based44.4
32.6iGPU—
84.3Platformspec-based69.6
9 spec wins — AMD Ryzen 9 9955HX4 spec wins — Intel Core Ultra 7 255HX
InnoReviews verdict
AMD Ryzen 9 9955HX wins this laptop processor face-off, 69.5 to 67.9, pulling ahead mainly in multi-core (+8) and single-core (+1). Intel Core Ultra 7 255HX still makes sense if its price or standout specs fit your needs better.
Which would you pick?
Key differences
Reasons to pick the AMD Ryzen 9 9955HX
- Stronger multi-core score: 82 vs 74
- 113% higher L3 cache: 64 MB vs 30 MB
- 100% higher Performance cores: 16 vs 8
- 60% higher threads: 32 vs 20
- 18% higher Cinebench R23 (multi): 37,500 vs 31,781
Reasons to pick the Intel Core Ultra 7 255HX
- 113% higher Max TDP: 160 W vs 75 W
- 25% lower process: 3 nm vs 4 nm
- 25% higher cores: 20 vs 16
General
| Spec | AMD Ryzen 9 9955HX | Intel Core Ultra 7 255HX |
|---|---|---|
| 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 7 255HX |
|---|---|---|
| Cores | 16 | 20+25% |
| Performance cores | 16+100% | 8 |
| Efficiency cores | — | 12 |
| Threads | 32+60% | 20 |
| Base clock | 2.5 GHz+4% | 2.4 GHz |
| Boost clock | 5.4 GHz+4% | 5.2 GHz |
| L3 cache | 64 MB+113% | 30 MB |
Integrated GPU
| Spec | AMD Ryzen 9 9955HX | Intel Core Ultra 7 255HX |
|---|---|---|
| iGPU | AMD Radeon 610M | Intel Graphics (4 Xe-cores) |
| iGPU clock | 2,200 MHz | 1,850 MHz |
Memory
| Spec | AMD Ryzen 9 9955HX | Intel Core Ultra 7 255HX |
|---|---|---|
| Memory support | DDR5-5600 | DDR5-6400 |
| Max memory | 256 GB | 256 GB |
Benchmarks
| Spec | AMD Ryzen 9 9955HX | Intel Core Ultra 7 255HX |
|---|---|---|
| Geekbench 6 (single) | 3,080+4%Top 14% | 2,959Top 17% |
| Geekbench 6 (multi) | 19,500+9%Top 10% | 17,915Top 12% |
| Cinebench R23 (single) | 2,150Top 11% | 2,154Top 10% |
| Cinebench R23 (multi) | 37,500+18%Top 2% | 31,781Top 6% |
| PassMark | 56,261+17%Top 4% | 47,933Top 8% |
| 3DMark Time Spy Graphics (iGPU) | 528Bottom 18% | — |
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