Intel Core i5-1135G7 vs Intel Core i7-1255U
50.4Single-core52.8
27.8Multi-core32.6
60.2Efficiencyspec-based75.3
—iGPU55.7
41.6Platformspec-based47.7
1 spec wins — Intel Core i5-1135G79 spec wins — Intel Core i7-1255U
InnoReviews verdict
Intel Core i7-1255U wins this laptop processor face-off, 48.6 to 41.8, pulling ahead mainly in multi-core (+5) and single-core (+2). Intel Core i5-1135G7 still makes sense if its price or standout specs fit your needs better.
Which would you pick?
Key differences
Reasons to pick the Intel Core i5-1135G7
- 41% higher Base clock: 2.4 GHz vs 1.7 GHz
Reasons to pick the Intel Core i7-1255U
- Stronger multi-core score: 33 vs 28
- 150% higher cores: 10 vs 4
- 50% higher threads: 12 vs 8
- 50% higher L3 cache: 12 MB vs 8 MB
- 46% lower Base TDP: 15 W vs 28 W
General
| Spec | Intel Core i5-1135G7 | Intel Core i7-1255U |
|---|---|---|
| Announced | 2020 | 2022 |
| Process | 10 nm | 10 nm |
| Base TDP | 28 W | 15 W+46% |
| Max TDP | — | 55 W |
Cores & Clocks
| Spec | Intel Core i5-1135G7 | Intel Core i7-1255U |
|---|---|---|
| Cores | 4 | 10+150% |
| Performance cores | — | 2 |
| Efficiency cores | — | 8 |
| Threads | 8 | 12+50% |
| Base clock | 2.4 GHz+41% | 1.7 GHz |
| Boost clock | 4.2 GHz | 4.7 GHz+12% |
| L3 cache | 8 MB | 12 MB+50% |
Integrated GPU
| Spec | Intel Core i5-1135G7 | Intel Core i7-1255U |
|---|---|---|
| iGPU | Intel Iris Xe (80 EU) | Intel Iris Xe (96 EU) |
| iGPU clock | 1,300 MHz | 1,250 MHz |
Memory
| Spec | Intel Core i5-1135G7 | Intel Core i7-1255U |
|---|---|---|
| Memory support | DDR4-3200 / LPDDR4x-4267 | LPDDR5-5200 / DDR5-4800 / LPDDR4X-4267 |
| Max memory | 64 GB | 64 GB |
Benchmarks
| Spec | Intel Core i5-1135G7 | Intel Core i7-1255U |
|---|---|---|
| Geekbench 6 (single) | — | 2,130Bottom 25% |
| Geekbench 6 (multi) | — | 6,600Bottom 17% |
| Cinebench R23 (single) | 1,322Bottom 20% | 1,600+21%Bottom 41% |
| Cinebench R23 (multi) | 4,724Bottom 12% | 6,800+44%Bottom 20% |
| PassMark | 9,292Bottom 16% | 12,941+39%Bottom 25% |
| 3DMark Time Spy Graphics (iGPU) | — | 1,496Top 42% |
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