Processor Comparison

Core Ultra 5 250K Plus vs Core i9 12900HX

Verdict
Core Ultra 5 250K Plus vs Core i9 12900HX: Core Ultra 5 250K Plus leads in multi-core performance

Head-to-head specifications

MetricCore Ultra 5 250K PlusCore i9 12900HXDifference
Cinebench 2024 single-core139112+24.1%
Cinebench 2024 multi-core1,8531,269+46.0%
Cores18 (6P+12E)16 (8P+8E)
TDP (base W)12545
PassMark CPU Mark51,39733,015+55.7%
Street price (USD)$220$606-63.7%
  • Core Ultra 5 250K Plus is faster than Core i9 12900HX by 24.1% in single-core and faster by 46.0% in multi-core (Cinebench 2024).
  • Core i9 12900HX draws less power (45W vs 125W base TDP).

Verdict: Core Ultra 5 250K Plus or Core i9 12900HX?

Our recommendation
Core Ultra 5 250K Plus is the clearly stronger overall choice, winning most of the dimensions that matter.

Core Ultra 5 250K Plus advantages

  • Single-core speed (+19%)
  • Multi-core speed (+32%)
  • Affordability (+64%)

Core i9 12900HX advantages

  • Power efficiency (+64%)

Which should you choose?

  • Choose the Core Ultra 5 250K Plus if you mainly game or want snappy everyday responsiveness.
  • Choose the Core i9 12900HX if you want a cooler, quieter and more power-efficient build.
  • Choose the Core Ultra 5 250K Plus if you render video, compile code or run heavy multitasking.

Value for money

Core Ultra 5 250K Plus delivers more performance per dollar, making it the better value of the two at their listed prices.

Core Ultra 5 250K Plus vs Core i9 12900HX: which should you choose?

Core Ultra 5 250K Plus — 18-core Intel processor (6P+12E) scoring 139 single-core and 1853 multi-core in Cinebench 2024, with a 125 W TDP and 30 MB L3 cache.

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 5 250K Plus vs Core i9 12900HX: Core Ultra 5 250K Plus leads in multi-core performance. Core Ultra 5 250K Plus is faster than Core i9 12900HX by 24.1% in single-core and faster by 46.0% in multi-core (Cinebench 2024). Core i9 12900HX draws less power (45W vs 125W base TDP).

Gaming and single-threaded work

Games and everyday responsiveness lean on single-core speed. The Core Ultra 5 250K Plus leads there with a single-core score of 139 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 Ultra 5 250K Plus is stronger, posting 1,853 multi-core against 1,269 in Cinebench 2024. Its 18 cores (6 performance + 12 efficiency) give it real headroom for heavy parallel jobs.

Power and platform

The Core i9 12900HX is the more efficient chip at 45 W versus 125 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 5 250K Plus better than the Core i9 12900HX?

Core Ultra 5 250K Plus is the clearly stronger overall choice, winning most of the dimensions that matter. Core Ultra 5 250K Plus is faster than Core i9 12900HX by 24.1% in single-core and faster by 46.0% in multi-core (Cinebench 2024).

What is the main difference between the Core Ultra 5 250K Plus and the Core i9 12900HX?

Core Ultra 5 250K Plus is faster than Core i9 12900HX by 24.1% in single-core and faster by 46.0% in multi-core (Cinebench 2024). Core i9 12900HX draws less power (45W vs 125W base TDP).

Which is better value?

Core Ultra 5 250K Plus delivers more performance per dollar, making it the better value of the two at their listed prices.

Which should I choose?

Choose the Core Ultra 5 250K Plus if you mainly game or want snappy everyday responsiveness. Choose the Core i9 12900HX if you want a cooler, quieter and more power-efficient build.

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.

MC
Marcus Chen
Hardware & Product Analyst

Marcus benchmarks processors, GPUs, phones and vehicles and maintains normalized performance databases.

MSc Computer Engineering10+ years review experience
✓ Reviewed by Priya Nair, Data Quality Reviewer.
Last updated 2026-07-01
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