Intel Celeron N4020 vs Intel Core i7-1255U
20Single-core52.8
20Multi-core32.6
73.3Efficiencyspec-based75.3
20iGPU55.7
20Platformspec-based47.7
1 spec wins — Intel Celeron N402015 spec wins — Intel Core i7-1255U
InnoReviews verdict
Intel Core i7-1255U wins this laptop processor face-off, 48.6 to 28, pulling ahead mainly in iGPU (+36) and single-core (+33). Intel Celeron N4020 still makes sense if its price or standout specs fit your needs better.
Which would you pick?
Key differences
Reasons to pick the Intel Celeron N4020
- 60% lower Base TDP: 6 W vs 15 W
Reasons to pick the Intel Core i7-1255U
- Stronger single-core score: 53 vs 20
- Stronger multi-core score: 33 vs 20
- Stronger iGPU score: 56 vs 20
- 1292% higher 3DMark Time Spy Graphics (iGPU): 1,496 vs 108
- 1004% higher Cinebench R23 (multi): 6,800 vs 616
General
| Spec | Intel Celeron N4020 | Intel Core i7-1255U |
|---|---|---|
| Announced | 2019 | 2022 |
| Process | 14 nm | 10 nm+29% |
| Base TDP | 6 W+60% | 15 W |
| Max TDP | 15 W | 55 W+267% |
Cores & Clocks
| Spec | Intel Celeron N4020 | Intel Core i7-1255U |
|---|---|---|
| Cores | 2 | 10+400% |
| Performance cores | 0 | 2 |
| Efficiency cores | 2 | 8+300% |
| Threads | 2 | 12+500% |
| Base clock | 1.1 GHz | 1.7 GHz+55% |
| Boost clock | 2.8 GHz | 4.7 GHz+68% |
| L3 cache | 4 MB | 12 MB+200% |
Integrated GPU
| Spec | Intel Celeron N4020 | Intel Core i7-1255U |
|---|---|---|
| iGPU | Intel UHD Graphics 600 (12 EU) | Intel Iris Xe (96 EU) |
| iGPU clock | 650 MHz | 1,250 MHz |
Memory
| Spec | Intel Celeron N4020 | Intel Core i7-1255U |
|---|---|---|
| Memory support | DDR4-2400, LPDDR4-2400 | LPDDR5-5200 / DDR5-4800 / LPDDR4X-4267 |
| Max memory | 8 GB | 64 GB+700% |
Benchmarks
| Spec | Intel Celeron N4020 | Intel Core i7-1255U |
|---|---|---|
| Geekbench 6 (single) | — | 2,130Bottom 25% |
| Geekbench 6 (multi) | — | 6,600Bottom 17% |
| Cinebench R23 (single) | 308Bottom 2% | 1,600+419%Bottom 41% |
| Cinebench R23 (multi) | 616Bottom 2% | 6,800+1004%Bottom 20% |
| PassMark | 1,531Bottom 1% | 12,941+745%Bottom 25% |
| 3DMark Time Spy Graphics (iGPU) | 108Bottom 2% | 1,496+1292%Top 42% |
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