AMD Ryzen 9 9955HX vs Intel Core Ultra 7 155U
74.2Single-core54.1
82Multi-core38.4
42.2Efficiencyspec-based81.9
32.6iGPU—
84.3Platformspec-based51.8
15 spec wins — AMD Ryzen 9 9955HX1 spec wins — Intel Core Ultra 7 155U
InnoReviews verdict
AMD Ryzen 9 9955HX wins this laptop processor face-off, 69.5 to 52.3, pulling ahead mainly in multi-core (+44) and single-core (+20). Intel Core Ultra 7 155U 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 single-core score: 74 vs 54
- Stronger multi-core score: 82 vs 38
- 700% higher Performance cores: 16 vs 2
- 433% higher L3 cache: 64 MB vs 12 MB
- 290% higher Cinebench R23 (multi): 37,500 vs 9,627
Reasons to pick the Intel Core Ultra 7 155U
- 73% lower Base TDP: 15 W vs 55 W
General
| Spec | AMD Ryzen 9 9955HX | Intel Core Ultra 7 155U |
|---|---|---|
| Announced | 2025 | 2023 |
| Process | 4 nm+43% | 7 nm |
| Base TDP | 55 W | 15 W+73% |
| Max TDP | 75 W+32% | 57 W |
Cores & Clocks
| Spec | AMD Ryzen 9 9955HX | Intel Core Ultra 7 155U |
|---|---|---|
| Cores | 16+33% | 12 |
| Performance cores | 16+700% | 2 |
| Efficiency cores | — | 10 |
| Threads | 32+129% | 14 |
| Base clock | 2.5 GHz+47% | 1.7 GHz |
| Boost clock | 5.4 GHz+13% | 4.8 GHz |
| L3 cache | 64 MB+433% | 12 MB |
Integrated GPU
| Spec | AMD Ryzen 9 9955HX | Intel Core Ultra 7 155U |
|---|---|---|
| iGPU | AMD Radeon 610M | Intel Graphics (4 Xe) |
| iGPU clock | 2,200 MHz | 1,950 MHz |
Memory
| Spec | AMD Ryzen 9 9955HX | Intel Core Ultra 7 155U |
|---|---|---|
| Memory support | DDR5-5600 | LPDDR5X-7467 / DDR5-5600 |
| Max memory | 256 GB+167% | 96 GB |
Benchmarks
| Spec | AMD Ryzen 9 9955HX | Intel Core Ultra 7 155U |
|---|---|---|
| Geekbench 6 (single) | 3,080+40%Top 17% | 2,195Bottom 30% |
| Geekbench 6 (multi) | 19,500+117%Top 13% | 8,981Bottom 31% |
| Cinebench R23 (single) | 2,150+32%Top 12% | 1,627Bottom 44% |
| Cinebench R23 (multi) | 37,500+290%Top 3% | 9,627Bottom 37% |
| PassMark | 56,261+249%Top 5% | 16,133Bottom 34% |
| 3DMark Time Spy Graphics (iGPU) | 528Bottom 20% | — |
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