Core Ultra 7 356H vs Core i9 12900HX
Head-to-head specifications
| Metric | Core Ultra 7 356H | Core i9 12900HX | Difference |
|---|---|---|---|
| Cinebench 2024 single-core | 122 | 112 | +8.9% |
| Cinebench 2024 multi-core | 971 | 1,269 | -23.5% |
| Cores | 16 (4P+12E) | 16 (8P+8E) | — |
| TDP (base W) | 15 | 45 | — |
| PassMark CPU Mark | 33,974 | 33,015 | +2.9% |
- Core Ultra 7 356H is faster than Core i9 12900HX by 8.9% in single-core and slower by 23.5% in multi-core (Cinebench 2024).
- Core Ultra 7 356H draws less power (15W vs 45W base TDP).
Verdict: Core Ultra 7 356H or Core i9 12900HX?
Core Ultra 7 356H advantages
- Single-core speed (+8%)
- Power efficiency (+67%)
Core i9 12900HX advantages
- Multi-core speed (+23%)
Which should you choose?
- Choose the Core Ultra 7 356H if you mainly game or want snappy everyday responsiveness.
- Choose the Core i9 12900HX if you render video, compile code or run heavy multitasking.
- Choose the Core Ultra 7 356H if you want a cooler, quieter and more power-efficient build.
Core Ultra 7 356H vs Core i9 12900HX: which should you choose?
Core Ultra 7 356H — 16-core Intel processor (4P+12E) scoring 122 single-core and 971 multi-core in Cinebench 2024, with a 15 W TDP.
Core i9 12900HX — 16-core Intel processor (8P+8E) scoring 112 single-core and 1269 multi-core in Cinebench 2024, with a 45 W TDP.
Core Ultra 7 356H vs Core i9 12900HX: Core i9 12900HX leads in multi-core performance. Core Ultra 7 356H is faster than Core i9 12900HX by 8.9% in single-core and slower by 23.5% in multi-core (Cinebench 2024). Core Ultra 7 356H draws less power (15W vs 45W base TDP).
Gaming and single-threaded work
Games and everyday responsiveness lean on single-core speed. The Core Ultra 7 356H leads there with a single-core score of 122 versus 112, so it is the marginally better pick for high-refresh gaming — though at typical resolutions the GPU usually decides frame rates.
Content creation and multitasking
For rendering, compilation, video export and other all-core workloads, the Core i9 12900HX is stronger, posting 1,269 multi-core against 971 in Cinebench 2024. Its 16 cores (8 performance + 8 efficiency) give it real headroom for heavy parallel jobs.
Power and platform
The Core Ultra 7 356H is the more efficient chip at 15 W versus 45 W, which means less heat, quieter cooling and lower running costs under sustained load.
The verdict
Both are credible choices in the processor comparison space; the specification table above lays out every metric so you can weigh the trade-offs that matter to you. Pick the one whose strengths line up with how you will actually use it.
Frequently asked questions
Is the Core Ultra 7 356H better than the Core i9 12900HX?
These two are closely matched — the right pick comes down to which specific strengths you value and the price you actually pay. Core Ultra 7 356H is faster than Core i9 12900HX by 8.9% in single-core and slower by 23.5% in multi-core (Cinebench 2024).
What is the main difference between the Core Ultra 7 356H and the Core i9 12900HX?
Core Ultra 7 356H is faster than Core i9 12900HX by 8.9% in single-core and slower by 23.5% in multi-core (Cinebench 2024). Core Ultra 7 356H draws less power (15W vs 45W base TDP).
Which should I choose?
Choose the Core Ultra 7 356H if you mainly game or want snappy everyday responsiveness. Choose the Core i9 12900HX if you render video, compile code or run heavy multitasking.
Methodology
Processors are compared on Cinebench 2024 single-core and multi-core scores from published leaderboard results, alongside core configuration (performance + efficiency cores), base TDP, L3 cache, PassMark CPU Mark, 1080p gaming scores and street pricing where measured. Cinebench reflects rendering-style workloads; gaming performance depends heavily on the GPU and the specific title, so treat single-core standing as directional. Figures reflect the leaderboard snapshot on the page date.