AMD Ryzen 7 7840HS vs Intel Core Ultra 7 255HX
61.5Single-core72.8
51.2Multi-core73.8
65.4Efficiencyspec-based44.4
68.5iGPU—
61.8Platformspec-based69.6
2 spec wins — AMD Ryzen 7 7840HS12 spec wins — Intel Core Ultra 7 255HX
InnoReviews verdict
Intel Core Ultra 7 255HX wins this laptop processor face-off, 67.9 to 59.2, pulling ahead mainly in multi-core (+23) and single-core (+11). AMD Ryzen 7 7840HS 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 7840HS
- 58% higher Base clock: 3.8 GHz vs 2.4 GHz
- 36% lower Base TDP: 35 W vs 55 W
Reasons to pick the Intel Core Ultra 7 255HX
- Stronger single-core score: 73 vs 62
- Stronger multi-core score: 74 vs 51
- 196% higher Max TDP: 160 W vs 54 W
- 150% higher cores: 20 vs 8
- 91% higher Cinebench R23 (multi): 31,781 vs 16,600
General
| Spec | AMD Ryzen 7 7840HS | Intel Core Ultra 7 255HX |
|---|---|---|
| Announced | 2023 | 2025 |
| Process | 4 nm | 3 nm+25% |
| Base TDP | 35 W+36% | 55 W |
| Max TDP | 54 W | 160 W+196% |
Cores & Clocks
| Spec | AMD Ryzen 7 7840HS | Intel Core Ultra 7 255HX |
|---|---|---|
| Cores | 8 | 20+150% |
| Performance cores | 8 | 8 |
| Efficiency cores | — | 12 |
| Threads | 16 | 20+25% |
| Base clock | 3.8 GHz+58% | 2.4 GHz |
| Boost clock | 5.1 GHz | 5.2 GHz+2% |
| L3 cache | 16 MB | 30 MB+88% |
Integrated GPU
| Spec | AMD Ryzen 7 7840HS | Intel Core Ultra 7 255HX |
|---|---|---|
| iGPU | AMD Radeon 780M | Intel Graphics (4 Xe-cores) |
| iGPU clock | 2,700 MHz | 1,850 MHz |
Memory
| Spec | AMD Ryzen 7 7840HS | Intel Core Ultra 7 255HX |
|---|---|---|
| Memory support | LPDDR5X-7500 / DDR5-5600 | DDR5-6400 |
| Max memory | 256 GB | 256 GB |
Benchmarks
| Spec | AMD Ryzen 7 7840HS | Intel Core Ultra 7 255HX |
|---|---|---|
| Geekbench 6 (single) | 2,610Top 43% | 2,959+13%Top 17% |
| Geekbench 6 (multi) | 12,600Top 41% | 17,915+42%Top 12% |
| Cinebench R23 (single) | 1,760Top 46% | 2,154+22%Top 10% |
| Cinebench R23 (multi) | 16,600Top 32% | 31,781+91%Top 6% |
| PassMark | 28,241Top 26% | 47,933+70%Top 8% |
| 3DMark Time Spy Graphics (iGPU) | 2,659Top 23% | — |
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