Intel Core Ultra 7 355 vs Intel Processor U300
66.5Single-core52.1
43.7Multi-core27.3
81.4Efficiencyspec-based75.3
70.1iGPU36.9
49.2Platformspec-based42.7
15 spec wins — Intel Core Ultra 7 3551 spec wins — Intel Processor U300
InnoReviews verdict
Intel Core Ultra 7 355 wins this laptop processor face-off, 58.5 to 44, pulling ahead mainly in iGPU (+33) and multi-core (+16). 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 Ultra 7 355
- Stronger single-core score: 67 vs 52
- Stronger multi-core score: 44 vs 27
- Stronger iGPU score: 70 vs 37
- 346% higher 3DMark Time Spy Graphics (iGPU): 2,865 vs 643
- 300% higher Performance cores: 4 vs 1
Reasons to pick the Intel Processor U300
- 40% lower Base TDP: 15 W vs 25 W
General
| Spec | Intel Core Ultra 7 355 | Intel Processor U300 |
|---|---|---|
| Announced | 2026 | 2023 |
| Process | 2 nm+80% | 10 nm |
| Base TDP | 25 W | 15 W+40% |
| Max TDP | 55 W | 55 W |
Cores & Clocks
| Spec | Intel Core Ultra 7 355 | Intel Processor U300 |
|---|---|---|
| Cores | 8+60% | 5 |
| Performance cores | 4+300% | 1 |
| Efficiency cores | 4 | 4 |
| Threads | 8+33% | 6 |
| Base clock | 2.3 GHz+92% | 1.2 GHz |
| Boost clock | 4.7 GHz+7% | 4.4 GHz |
| L3 cache | 12 MB+50% | 8 MB |
Integrated GPU
| Spec | Intel Core Ultra 7 355 | Intel Processor U300 |
|---|---|---|
| iGPU | Intel Graphics (4 Xe3-cores) | Intel UHD Graphics (48 EU) |
| iGPU clock | 2,500 MHz | 1,100 MHz |
Memory
| Spec | Intel Core Ultra 7 355 | Intel Processor U300 |
|---|---|---|
| Memory support | LPDDR5X-7467 / DDR5-6400 | DDR5-5200 / LPDDR5/X-5200 / DDR4-3200 / LPDDR4X-4267 |
| Max memory | 128 GB+33% | 96 GB |
Benchmarks
| Spec | Intel Core Ultra 7 355 | Intel Processor U300 |
|---|---|---|
| Geekbench 6 (single) | 2,725+34%Top 36% | 2,041Bottom 18% |
| Geekbench 6 (multi) | 11,367+160%Bottom 51% | 4,369Bottom 5% |
| Cinebench R23 (single) | 1,958+21%Top 23% | 1,616Bottom 37% |
| Cinebench R23 (multi) | 11,261+130%Bottom 47% | 4,905Bottom 11% |
| PassMark | 20,125+130%Bottom 50% | 8,758Bottom 12% |
| 3DMark Time Spy Graphics (iGPU) | 2,865+346%Top 20% | 643Bottom 22% |
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