Intel Core i7-1255U vs Intel Processor U300
52.8Single-core52.1
32.6Multi-core27.3
75.3Efficiencyspec-based75.3
55.7iGPU36.9
47.7Platformspec-based42.7
12 spec wins — Intel Core i7-1255U3 spec wins — Intel Processor U300
InnoReviews verdict
Intel Core i7-1255U wins this laptop processor face-off, 48.6 to 44, pulling ahead mainly in iGPU (+19) and multi-core (+5). Intel Processor U300 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 i7-1255U
- Stronger multi-core score: 33 vs 27
- Stronger iGPU score: 56 vs 37
- 133% higher 3DMark Time Spy Graphics (iGPU): 1,496 vs 643
- 100% higher cores: 10 vs 5
- 100% higher Performance cores: 2 vs 1
Reasons to pick the Intel Processor U300
- 50% higher Max memory: 96 GB vs 64 GB
General
| Spec | Intel Core i7-1255U | Intel Processor U300 |
|---|---|---|
| Announced | 2022 | 2023 |
| Process | 10 nm | 10 nm |
| Base TDP | 15 W | 15 W |
| Max TDP | 55 W | 55 W |
Cores & Clocks
| Spec | Intel Core i7-1255U | Intel Processor U300 |
|---|---|---|
| Cores | 10+100% | 5 |
| Performance cores | 2+100% | 1 |
| Efficiency cores | 8+100% | 4 |
| Threads | 12+100% | 6 |
| Base clock | 1.7 GHz+42% | 1.2 GHz |
| Boost clock | 4.7 GHz+7% | 4.4 GHz |
| L3 cache | 12 MB+50% | 8 MB |
Integrated GPU
| Spec | Intel Core i7-1255U | Intel Processor U300 |
|---|---|---|
| iGPU | Intel Iris Xe (96 EU) | Intel UHD Graphics (48 EU) |
| iGPU clock | 1,250 MHz | 1,100 MHz |
Memory
| Spec | Intel Core i7-1255U | Intel Processor U300 |
|---|---|---|
| Memory support | LPDDR5-5200 / DDR5-4800 / LPDDR4X-4267 | DDR5-5200 / LPDDR5/X-5200 / DDR4-3200 / LPDDR4X-4267 |
| Max memory | 64 GB | 96 GB+50% |
Benchmarks
| Spec | Intel Core i7-1255U | Intel Processor U300 |
|---|---|---|
| Geekbench 6 (single) | 2,130+4%Bottom 21% | 2,041Bottom 18% |
| Geekbench 6 (multi) | 6,600+51%Bottom 16% | 4,369Bottom 5% |
| Cinebench R23 (single) | 1,600Bottom 35% | 1,616+1%Bottom 37% |
| Cinebench R23 (multi) | 6,800+39%Bottom 19% | 4,905Bottom 11% |
| PassMark | 12,941+48%Bottom 23% | 8,758Bottom 12% |
| 3DMark Time Spy Graphics (iGPU) | 1,496+133%Top 43% | 643Bottom 22% |
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