AMD Ryzen 9 7940HX vs Intel Core i7-1255U
64Single-core52.8
71.4Multi-core32.6
40Efficiencyspec-based75.3
—iGPU55.7
75.4Platformspec-based47.7
14 spec wins — AMD Ryzen 9 7940HX2 spec wins — Intel Core i7-1255U
InnoReviews verdict
AMD Ryzen 9 7940HX wins this laptop processor face-off, 64.8 to 48.6, pulling ahead mainly in multi-core (+39) and single-core (+11). Intel Core i7-1255U 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 7940HX
- Stronger single-core score: 64 vs 53
- Stronger multi-core score: 71 vs 33
- 700% higher Performance cores: 16 vs 2
- 433% higher L3 cache: 64 MB vs 12 MB
- 332% higher Cinebench R23 (multi): 29,400 vs 6,800
Reasons to pick the Intel Core i7-1255U
- 73% lower Base TDP: 15 W vs 55 W
General
| Spec | AMD Ryzen 9 7940HX | Intel Core i7-1255U |
|---|---|---|
| Announced | 2024 | 2022 |
| Process | 5 nm+50% | 10 nm |
| Base TDP | 55 W | 15 W+73% |
| Max TDP | 75 W+36% | 55 W |
Cores & Clocks
| Spec | AMD Ryzen 9 7940HX | Intel Core i7-1255U |
|---|---|---|
| Cores | 16+60% | 10 |
| Performance cores | 16+700% | 2 |
| Efficiency cores | 0 | 8 |
| Threads | 32+167% | 12 |
| Base clock | 2.4 GHz+41% | 1.7 GHz |
| Boost clock | 5.2 GHz+11% | 4.7 GHz |
| L3 cache | 64 MB+433% | 12 MB |
Integrated GPU
| Spec | AMD Ryzen 9 7940HX | Intel Core i7-1255U |
|---|---|---|
| iGPU | AMD Radeon 610M | Intel Iris Xe (96 EU) |
| iGPU clock | 2,200 MHz | 1,250 MHz |
Memory
| Spec | AMD Ryzen 9 7940HX | Intel Core i7-1255U |
|---|---|---|
| Memory support | DDR5-5200 | LPDDR5-5200 / DDR5-4800 / LPDDR4X-4267 |
| Max memory | 64 GB | 64 GB |
Benchmarks
| Spec | AMD Ryzen 9 7940HX | Intel Core i7-1255U |
|---|---|---|
| Geekbench 6 (single) | 2,751+29%Top 33% | 2,130Bottom 21% |
| Geekbench 6 (multi) | 16,094+144%Top 19% | 6,600Bottom 16% |
| Cinebench R23 (single) | 1,807+13%Top 39% | 1,600Bottom 35% |
| Cinebench R23 (multi) | 29,400+332%Top 8% | 6,800Bottom 19% |
| PassMark | 52,889+309%Top 7% | 12,941Bottom 23% |
| 3DMark Time Spy Graphics (iGPU) | — | 1,496Top 43% |
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