Intel Core Ultra 9 275HX vs Intel Core i9 12900H

Updated Nov 2026 · Scored by the Let’s Compare Data Engine · How we score

For most buyers the Intel Core Ultra 9 275HX is the better pick — it scores 77/100 to the Intel Core i9 12900H's 42, leading on Core Specifications and Benchmark. Choose the Intel Core i9 12900H instead if you want to spend less.

Verdict

Our overall take, at a glance

Intel Core Ultra 9 275HX leads overall

Intel Core Ultra 9 275HX

Intel Core i9 12900H

Why it stands out

Core Specifications L2 Cache: 40 MB (248% more)
Benchmark PassMark CPU Mark: 55,677 (110% more)
Core Specifications L1 Cache: 2,432 KB (95% more)

Winner by category for Intel Core Ultra 9 275HX vs Intel Core i9 12900H
Category	Intel Core Ultra 9 275HX	Intel Core i9 12900H	Winner
Core Specifications	65	34	Intel Core Ultra 9 275HX
Integrated Graphics	29	29	Tie
Benchmark	88	48	Intel Core Ultra 9 275HX

In-depth analysisAI

AI-generated from the cited sources — may be incomplete or inaccurate; verify important details before deciding · generated Nov 2026.

Intel Core Ultra 9 275HX

The Intel Core Ultra 9 275HX is a high-performance mobile processor built for demanding laptop computers and portable workstations. With a PassMark CPU Mark score of 58,000, this chip is designed to deliver desktop-class processing power on the go. It is primarily built for users who need to execute resource-heavy applications, gaming, and professional-grade content creation.

Best for Intensive multi-threaded applications like 3D rendering, simulation software…Best for High-end mobile gaming configurations that demand elite levels of CPU…

Pros

Strong computational performance indicated by a high PassMark benchmark score of 58,000
Capable of handling complex multi-threaded software and heavy multitasking workloads

Cons

High energy demands typical of the HX class can significantly reduce laptop battery longevity
Generates substantial heat, requiring robust thermal cooling solutions that often increase laptop thickness and weight

Intel Core i9 12900H

The Intel Core i9 12900H is a high-performance mobile processor designed for intensive laptops like portable workstations and gaming rigs. Released in early 2022, it features 14 cores, 20 threads, and maximum clock speeds reaching up to 5.0 GHz. Manufactured on a 7nm lithography process, this chip incorporates 24 MB of L3 cache alongside integrated Intel Iris Xe Graphics for basic display management.

Best for High-end mobile gaming setups paired with a dedicated graphics cardBest for Demanding creative workloads like high-resolution video rendering and 3D asset c

Pros

High 14-core, 20-thread configuration delivers solid multi-threaded performance
Reaches peak boost frequencies of up to 5.0 GHz for responsive single-core execution
Large 24 MB L3 cache facilitates fast data access during complex processing tasks
Includes integrated Intel Iris Xe Graphics for display output without requiring continuous discrete GPU power

Cons

Maximum power consumption reaches 115W under full load, requiring robust thermal solutions and shortening battery life
Locked design prevents manual core overclocking

Value for Money

Which is the better deal for the price

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Intel Core Ultra 9 275HX

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Intel Core i9 12900H

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Performance

Higher benchmark score = faster

Intel Core Ultra 9 275HX55,677

Intel Core i9 12900H26,524

See the raw benchmark values →

Benchmark score — a measured indicator of raw performance, not a guarantee of real-world speed.

Detailed Specifications

The full spec sheet, side by side

Core Specifications

Feature	Intel Core Ultra 9 275HX	Intel Core i9 12900H
Cores	24	14
Threads	24	20
Base Frequency	2.7 GHz8% more	2.5 GHz
Base Power Consumption	55 W22% more	45 W
Maximum Frequency	5.4 GHz8% more	5 GHz
Maximum Power Consumption	160 W39% more	115 W
L1 Cache	2,432 KB95% more	1,248 KB
L2 Cache	40 MB248% more	11.5 MB
L3 Cache	36 MB50% more	24 MB
Lithography Process	3 nm57% less	7 nm
Is unlocked	N/A	No

Integrated Graphics

Feature	Intel Core Ultra 9 275HX	Intel Core i9 12900H
Model

Benchmark

Feature	Intel Core Ultra 9 275HX	Intel Core i9 12900H
PassMark CPU Mark	55,677110% more	26,524

Specification Note

Specifications are compiled from official manufacturer data and other reliable internet sources. Some features may vary by region or model configuration.

Frequently Asked Questions

Common questions about Intel Core Ultra 9 275HX vs Intel Core i9 12900H comparison

Based on our overall comparison score, Intel Core Ultra 9 275HX rates higher at 81/100 versus 56/100 for Intel Core i9 12900H — a 25-point lead. Intel Core Ultra 9 275HX is the stronger overall pick, though the right choice still depends on which specs matter most to you; the full spec table above breaks down every difference.

Intel Core Ultra 9 275HX and Intel Core i9 12900H are compared side by side above across every spec in the cpus category — including performance, features and design — each scored 0–100 so you can see exactly where one leads the other. Our overall scores are 81/100 for Intel Core Ultra 9 275HX and 56/100 for Intel Core i9 12900H.

If you want the higher-rated cpus option overall, Intel Core Ultra 9 275HX (81/100) edges out Intel Core i9 12900H (56/100). But if Intel Core i9 12900H is cheaper or stronger on the specific specs you care about, it can still be the better buy — use the spec table and strengths profile above to decide.