AMD Ryzen 7 H 255 vs AMD Ryzen 9 9955HX
59.8Single-core74.2
51Multi-core82
53.8Efficiencyspec-based42.2
71.7iGPU32.6
61.8Platformspec-based84.3
3 spec wins — AMD Ryzen 7 H 25511 spec wins — AMD Ryzen 9 9955HX
InnoReviews verdict
AMD Ryzen 9 9955HX wins this laptop processor face-off, 69.5 to 57.3, pulling ahead mainly in multi-core (+31) and single-core (+14). AMD Ryzen 7 H 255 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 7 H 255
- Stronger iGPU score: 72 vs 33
- 483% higher 3DMark Time Spy Graphics (iGPU): 3,077 vs 528
- 52% higher Base clock: 3.8 GHz vs 2.5 GHz
- 18% lower Base TDP: 45 W vs 55 W
Reasons to pick the AMD Ryzen 9 9955HX
- Stronger single-core score: 74 vs 60
- Stronger multi-core score: 82 vs 51
- 300% higher L3 cache: 64 MB vs 16 MB
- 132% higher Cinebench R23 (multi): 37,500 vs 16,137
- 100% higher cores: 16 vs 8
General
| Spec | AMD Ryzen 7 H 255 | AMD Ryzen 9 9955HX |
|---|---|---|
| Announced | 2025 | 2025 |
| Process | 4 nm | 4 nm |
| Base TDP | 45 W+18% | 55 W |
| Max TDP | 54 W | 75 W+39% |
Cores & Clocks
| Spec | AMD Ryzen 7 H 255 | AMD Ryzen 9 9955HX |
|---|---|---|
| Cores | 8 | 16+100% |
| Performance cores | 8 | 16+100% |
| Efficiency cores | 0 | — |
| Threads | 16 | 32+100% |
| Base clock | 3.8 GHz+52% | 2.5 GHz |
| Boost clock | 4.9 GHz | 5.4 GHz+10% |
| L3 cache | 16 MB | 64 MB+300% |
Integrated GPU
| Spec | AMD Ryzen 7 H 255 | AMD Ryzen 9 9955HX |
|---|---|---|
| iGPU | AMD Radeon 780M | AMD Radeon 610M |
| iGPU clock | 2,600 MHz | 2,200 MHz |
Memory
| Spec | AMD Ryzen 7 H 255 | AMD Ryzen 9 9955HX |
|---|---|---|
| Memory support | LPDDR5X-7500 / DDR5-5600 | DDR5-5600 |
| Max memory | 256 GB | 256 GB |
Benchmarks
| Spec | AMD Ryzen 7 H 255 | AMD Ryzen 9 9955HX |
|---|---|---|
| Geekbench 6 (single) | 2,546Top 48% | 3,080+21%Top 16% |
| Geekbench 6 (multi) | 12,670Top 39% | 19,500+54%Top 11% |
| Cinebench R23 (single) | 1,708Top 50% | 2,150+26%Top 11% |
| Cinebench R23 (multi) | 16,137Top 32% | 37,500+132%Top 2% |
| PassMark | 28,205Top 25% | 56,261+99%Top 4% |
| 3DMark Time Spy Graphics (iGPU) | 3,077+483%Top 17% | 528Bottom 19% |
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