AMD Ryzen 9 9955HX vs AMD Ryzen AI 7 450
74.2Single-core70.1
82Multi-core52.6
42.2Efficiencyspec-based73.5
32.6iGPU—
84.3Platformspec-based61.8
12 spec wins — AMD Ryzen 9 9955HX2 spec wins — AMD Ryzen AI 7 450
InnoReviews verdict
AMD Ryzen 9 9955HX wins this laptop processor face-off, 69.5 to 62.5, pulling ahead mainly in multi-core (+29) and single-core (+4). AMD Ryzen AI 7 450 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 70
- Stronger multi-core score: 82 vs 53
- 300% higher Performance cores: 16 vs 4
- 300% higher L3 cache: 64 MB vs 16 MB
- 117% higher Cinebench R23 (multi): 37,500 vs 17,302
Reasons to pick the AMD Ryzen AI 7 450
- 49% lower Base TDP: 28 W vs 55 W
General
| Spec | AMD Ryzen 9 9955HX | AMD Ryzen AI 7 450 |
|---|---|---|
| Announced | 2025 | 2026 |
| Process | 4 nm | 4 nm |
| Base TDP | 55 W | 28 W+49% |
| Max TDP | 75 W+39% | 54 W |
Cores & Clocks
| Spec | AMD Ryzen 9 9955HX | AMD Ryzen AI 7 450 |
|---|---|---|
| Cores | 16+100% | 8 |
| Performance cores | 16+300% | 4 |
| Efficiency cores | — | 4 |
| Threads | 32+100% | 16 |
| Base clock | 2.5 GHz+25% | 2 GHz |
| Boost clock | 5.4 GHz+6% | 5.1 GHz |
| L3 cache | 64 MB+300% | 16 MB |
Integrated GPU
| Spec | AMD Ryzen 9 9955HX | AMD Ryzen AI 7 450 |
|---|---|---|
| iGPU | AMD Radeon 610M | AMD Radeon 860M |
| iGPU clock | 2,200 MHz | 3,100 MHz |
Memory
| Spec | AMD Ryzen 9 9955HX | AMD Ryzen AI 7 450 |
|---|---|---|
| Memory support | DDR5-5600 | LPDDR5X-8533 / DDR5-5600 |
| Max memory | 256 GB | 256 GB |
Benchmarks
| Spec | AMD Ryzen 9 9955HX | AMD Ryzen AI 7 450 |
|---|---|---|
| Geekbench 6 (single) | 3,080+6%Top 17% | 2,914Top 23% |
| Geekbench 6 (multi) | 19,500+41%Top 12% | 13,789Top 34% |
| Cinebench R23 (single) | 2,150+6%Top 12% | 2,035Top 19% |
| Cinebench R23 (multi) | 37,500+117%Top 3% | 17,302Top 25% |
| PassMark | 56,261+114%Top 5% | 26,312Top 31% |
| 3DMark Time Spy Graphics (iGPU) | 528Bottom 20% | — |
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