AMD Ryzen 7 H 255 vs AMD Ryzen AI 7 450
59.8Single-core70.1
51Multi-core52.6
53.8Efficiencyspec-based73.5
71.7iGPU—
61.8Platformspec-based61.8
3 spec wins — AMD Ryzen 7 H 2558 spec wins — AMD Ryzen AI 7 450
InnoReviews verdict
AMD Ryzen AI 7 450 wins this laptop processor face-off, 62.5 to 57.3, pulling ahead mainly in single-core (+10) and multi-core (+2). 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
- 100% higher Performance cores: 8 vs 4
- 90% higher Base clock: 3.8 GHz vs 2 GHz
Reasons to pick the AMD Ryzen AI 7 450
- Stronger single-core score: 70 vs 60
- 38% lower Base TDP: 28 W vs 45 W
- 19% higher Cinebench R23 (single): 2,035 vs 1,708
- 14% higher Geekbench 6 (single): 2,914 vs 2,546
General
| Spec | AMD Ryzen 7 H 255 | AMD Ryzen AI 7 450 |
|---|---|---|
| Announced | 2025 | 2026 |
| Process | 4 nm | 4 nm |
| Base TDP | 45 W | 28 W+38% |
| Max TDP | 54 W | 54 W |
Cores & Clocks
| Spec | AMD Ryzen 7 H 255 | AMD Ryzen AI 7 450 |
|---|---|---|
| Cores | 8 | 8 |
| Performance cores | 8+100% | 4 |
| Efficiency cores | 0 | 4 |
| Threads | 16 | 16 |
| Base clock | 3.8 GHz+90% | 2 GHz |
| Boost clock | 4.9 GHz | 5.1 GHz+4% |
| L3 cache | 16 MB | 16 MB |
Integrated GPU
| Spec | AMD Ryzen 7 H 255 | AMD Ryzen AI 7 450 |
|---|---|---|
| iGPU | AMD Radeon 780M | AMD Radeon 860M |
| iGPU clock | 2,600 MHz | 3,100 MHz |
Memory
| Spec | AMD Ryzen 7 H 255 | AMD Ryzen AI 7 450 |
|---|---|---|
| Memory support | LPDDR5X-7500 / DDR5-5600 | LPDDR5X-8533 / DDR5-5600 |
| Max memory | 256 GB | 256 GB |
Benchmarks
| Spec | AMD Ryzen 7 H 255 | AMD Ryzen AI 7 450 |
|---|---|---|
| Geekbench 6 (single) | 2,546Top 48% | 2,914+14%Top 21% |
| Geekbench 6 (multi) | 12,670Top 39% | 13,789+9%Top 31% |
| Cinebench R23 (single) | 1,708Top 50% | 2,035+19%Top 17% |
| Cinebench R23 (multi) | 16,137Top 32% | 17,302+7%Top 24% |
| PassMark | 28,205+7%Top 25% | 26,312Top 29% |
| 3DMark Time Spy Graphics (iGPU) | 3,077Top 17% | — |
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