AMD Ryzen 7 8840U vs Intel Core Ultra 7 255U
62.9Single-core60.7
44.2Multi-core40.7
73.5Efficiencyspec-based90.8
68.5iGPU61.3
55.5Platformspec-based53.6
7 spec wins — AMD Ryzen 7 8840U9 spec wins — Intel Core Ultra 7 255U
InnoReviews verdict
This one is close to a dead heat: AMD Ryzen 7 8840U scores 57.4 against 57.2 for Intel Core Ultra 7 255U. Pick by the categories that matter to you — AMD Ryzen 7 8840U edges ahead in iGPU and multi-core, or by price.
Which would you pick?
Key differences
Reasons to pick the AMD Ryzen 7 8840U
- Stronger multi-core score: 44 vs 41
- Stronger iGPU score: 69 vs 61
- 300% higher Performance cores: 8 vs 2
- 65% higher Base clock: 3.3 GHz vs 2 GHz
- 38% higher 3DMark Time Spy Graphics (iGPU): 2,659 vs 1,926
Reasons to pick the Intel Core Ultra 7 255U
- 90% higher Max TDP: 57 W vs 30 W
- 50% higher cores: 12 vs 8
- 46% lower Base TDP: 15 W vs 28 W
- 33% higher Max memory: 128 GB vs 96 GB
- 25% lower process: 3 nm vs 4 nm
General
| Spec | AMD Ryzen 7 8840U | Intel Core Ultra 7 255U |
|---|---|---|
| Announced | 2023 | 2025 |
| Process | 4 nm | 3 nm+25% |
| Base TDP | 28 W | 15 W+46% |
| Max TDP | 30 W | 57 W+90% |
Cores & Clocks
| Spec | AMD Ryzen 7 8840U | Intel Core Ultra 7 255U |
|---|---|---|
| Cores | 8 | 12+50% |
| Performance cores | 8+300% | 2 |
| Efficiency cores | — | 10 |
| Threads | 16+14% | 14 |
| Base clock | 3.3 GHz+65% | 2 GHz |
| Boost clock | 5.1 GHz | 5.2 GHz+2% |
| L3 cache | 16 MB+33% | 12 MB |
Integrated GPU
| Spec | AMD Ryzen 7 8840U | Intel Core Ultra 7 255U |
|---|---|---|
| iGPU | AMD Radeon 780M | Intel Graphics (4 Xe-cores) |
| iGPU clock | 2,700 MHz | 2,100 MHz |
Memory
| Spec | AMD Ryzen 7 8840U | Intel Core Ultra 7 255U |
|---|---|---|
| Memory support | DDR5-5600 / LPDDR5X-7500 | LPDDR5/X-8400 / DDR5-6400 |
| Max memory | 96 GB | 128 GB+33% |
Benchmarks
| Spec | AMD Ryzen 7 8840U | Intel Core Ultra 7 255U |
|---|---|---|
| Geekbench 6 (single) | — | 2,428Bottom 40% |
| Geekbench 6 (multi) | — | 10,105Bottom 39% |
| Cinebench R23 (single) | 1,619Bottom 36% | 1,835+13%Top 35% |
| Cinebench R23 (multi) | 12,191+20%Top 49% | 10,123Bottom 38% |
| PassMark | 23,390+31%Top 41% | 17,851Bottom 41% |
| PassMark (single thread) | 3,538Bottom 48% | 3,642+3%Top 48% |
| 3DMark Time Spy Graphics (iGPU) | 2,659+38%Top 26% | 1,926Top 40% |
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