Intel Core i7-1355U vs Intel Core i9-12900HK
60.9Single-core60.5
37.1Multi-core51
75.3Efficiencyspec-based40.5
55.7iGPU55.7
50.3Platformspec-based59
4 spec wins — Intel Core i7-1355U10 spec wins — Intel Core i9-12900HK
InnoReviews verdict
This one is close to a dead heat: Intel Core i7-1355U scores 52.6 against 53.5 for Intel Core i9-12900HK. Pick by the categories that matter to you — Intel Core i9-12900HK edges ahead in multi-core, or by price.
Which would you pick?
Key differences
Reasons to pick the Intel Core i7-1355U
- 67% lower Base TDP: 15 W vs 45 W
- 50% higher Max memory: 96 GB vs 64 GB
Reasons to pick the Intel Core i9-12900HK
- Stronger multi-core score: 51 vs 37
- 200% higher Performance cores: 6 vs 2
- 109% higher Max TDP: 115 W vs 55 W
- 104% higher Cinebench R23 (multi): 17,600 vs 8,637
- 100% higher L3 cache: 24 MB vs 12 MB
General
| Spec | Intel Core i7-1355U | Intel Core i9-12900HK |
|---|---|---|
| Announced | 2023 | 2022 |
| Process | 10 nm | 10 nm |
| Base TDP | 15 W+67% | 45 W |
| Max TDP | 55 W | 115 W+109% |
Cores & Clocks
| Spec | Intel Core i7-1355U | Intel Core i9-12900HK |
|---|---|---|
| Cores | 10 | 14+40% |
| Performance cores | 2 | 6+200% |
| Efficiency cores | 8 | 8 |
| Threads | 12 | 20+67% |
| Base clock | 1.7 GHz | 2.5 GHz+47% |
| Boost clock | 5 GHz | 5 GHz |
| L3 cache | 12 MB | 24 MB+100% |
Integrated GPU
| Spec | Intel Core i7-1355U | Intel Core i9-12900HK |
|---|---|---|
| iGPU | Intel Iris Xe (96 EU) | Intel Iris Xe (96 EU) |
| iGPU clock | 1,300 MHz | 1,450 MHz |
Memory
| Spec | Intel Core i7-1355U | Intel Core i9-12900HK |
|---|---|---|
| Memory support | LPDDR5-6400 / DDR5-5200 / DDR4-3200 / LPDDR4X-4267 | DDR5-4800 / LPDDR5-5200 / DDR4-3200 |
| Max memory | 96 GB+50% | 64 GB |
Benchmarks
| Spec | Intel Core i7-1355U | Intel Core i9-12900HK |
|---|---|---|
| Geekbench 6 (single) | 2,491+2%Top 50% | 2,450Bottom 48% |
| Geekbench 6 (multi) | 8,984Bottom 32% | 12,700+41%Top 40% |
| Cinebench R23 (single) | 1,805Top 38% | 1,810Top 36% |
| Cinebench R23 (multi) | 8,637Bottom 29% | 17,600+104%Top 24% |
| PassMark | 13,837Bottom 27% | 24,954+80%Top 34% |
| 3DMark Time Spy Graphics (iGPU) | 1,496Top 42% | 1,496Top 42% |
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