CPU Comparison
Intel Core Ultra 5 125H vs Intel Core Ultra 5 134U
A side-by-side comparison of specs, performance and value. The Intel Core Ultra 5 125H is a highly versatile mobile processor introduced in December 2023 as part of the inaugural Meteor Lake lineup. Designed to bridge the gap between performance and efficiency, it features a unique 14-core hybrid architecture. This includes 4 P-cores, 8 E-cores, and 2 Low-Power E-cores (LP E-cores), totaling 18 processing threads. Operating at a base frequency of 3.6 GHz and boosting up to 4.5 GHz, it provides robust computational power for thin-and-light laptops. The processor is built on Intel's 7nm process for the compute tile, supplemented by TSMC N6 and N5 nodes for the SOC and graphics tiles. It introduces an integrated NPU delivering 11 TOPS, marking Intel’s first major step into AI acceleration on mobile platforms. With a 28W base TDP and a maximum power draw of 115W, the 125H balances aggressive burst performance with the thermal constraints of premium ultraportables, making it a well-rounded chip for creators and professionals.
The Bottom Line
Overview & Launch
Specifications Compared
Performance Compared
Productivity
Strong multi-core performance handles heavy office workloads and compilation effortlessly.
Adequate for basic office tasks, but will slow down under heavy multitasking or large file processing.
Gaming
Performs well in esports and older AAA titles at 1080p medium settings thanks to the 96 EU graphics.
Not suitable for modern gaming. Can handle 2D indie games and very old titles.
Virtualization
18 threads provide ample resources for running development VMs and containers.
Not recommended for virtualization due to the 9W power limit and low base clocks.
Efficiency
Good efficiency for a 28W part, though not as battery-friendly as Lunar Lake.
Industry-leading efficiency. Can achieve multiple days of battery life in tablet form factors.
Specialized Performance
AI / ML
- 11 TOPS NPU is suitable for background AI tasks
- Does not meet Copilot+ PC 40 TOPS requirement
- AI workloads are shared between CPU, GPU, and NPU
- 11 TOPS NPU handles basic background AI efficiently
- Does not meet Copilot+ PC requirements
- NPU prioritized for battery saving over performance
Content Creation
Gaming
- 96 EU Arc graphics are a massive step up from older Iris Xe
- Supports hardware ray tracing
- Can play most modern games at 1080p low/medium settings
- Only suitable for 2D or casual mobile games
- Graphics throttle quickly due to 9W limit
- Not designed for 3D gaming
Industry Impact
Best CPU by Use Case
Target Audience
Strengths & Weaknesses
Pros
- Excellent 14-core hybrid performance
- Strong integrated Arc graphics
- Good balance of power and efficiency
- Supports fast LPDDR5x memory
- Includes dedicated NPU for AI
Cons
- NPU is relatively weak compared to Lunar Lake
- Can run warm under sustained loads
- Not a Copilot+ PC compliant chip
- Locked multiplier
Pros
- Extremely low 9W power consumption
- Enables fanless, silent designs
- Excellent for media consumption
- Multi-day battery life potential
- Surprisingly capable 12-core burst performance
Cons
- Very low base clock of 700 MHz
- Throttles quickly under sustained load
- Not suitable for productivity power users
- Limited to LPDDR5x memory
Competitors & Alternatives
Intel Core Ultra 5 125H
- AMD Ryzen 7 8840HSRival
Mobile
- AMD Ryzen 5 8640HSRival
Mobile
- Intel Core Ultra 7 155HRival
Mobile
- Qualcomm Snapdragon X PlusRival
Mobile
- Compare head-to-headApple M2Rival
Mobile
- Core Ultra 5 125UAlt
A more power-efficient alternative for users prioritizing battery life over raw performance.
- Snapdragon X EliteAlt
An ARM-based alternative offering exceptional battery life and AI performance.
Intel Core Ultra 5 134U
- AMD Ryzen 3 8440URival
Mobile
- Compare head-to-headApple M2Rival
Mobile
- Qualcomm Snapdragon X EliteRival
Mobile
- Compare head-to-headIntel Core Ultra 5 125URival
Mobile
- MediaTek Kompanio 1380Rival
Mobile
- Core Ultra 5 125UAlt
A slightly more powerful alternative if you need a bit more headroom for multitasking.
- Snapdragon X EliteAlt
A powerful ARM-based alternative offering excellent battery life.
- AMD Ryzen 5 8640UAlt
A competitive x86 alternative in the thin-and-light segment.
- Intel Core i5-1334UAlt
A 13th Gen alternative if you want traditional Intel architecture without the chiplet design.
Our Verdict on Each
A well-balanced mobile processor that successfully combines strong CPU performance with capable integrated graphics and an entry-level NPU for AI workloads.
Best for: Performance thin-and-light laptop for mixed productivity and gaming
Read the full reviewAn impressive ultra-low-power chip that enables true fanless designs and multi-day battery life, though its raw performance is strictly limited to basic tasks.
Best for: Ultra-thin Windows tablets or fanless 2-in-1 laptops
Read the full reviewFrequently Asked Questions
Which is better, Intel Core Ultra 5 125H or Intel Core Ultra 5 134U?
Based on our editorial ratings, the Intel Core Ultra 5 125H comes out ahead with a score of 8.5/10. That said, the best choice depends on your workload — check the spec and performance breakdown above for gaming, productivity and efficiency differences.
Which is faster for gaming, Intel Core Ultra 5 125H or Intel Core Ultra 5 134U?
For gaming, the Intel Core Ultra 5 125H leads with a gaming performance score of 78/100 among Intel Core Ultra 5 125H and Intel Core Ultra 5 134U.
Which uses less power?
The Intel Core Ultra 5 134U has the lowest rated TDP. Power draw across these chips: Intel Core Ultra 5 125H (28 W), Intel Core Ultra 5 134U (9 W).
Do Intel Core Ultra 5 125H and Intel Core Ultra 5 134U use the same socket?
No. They use different sockets (Intel Core Ultra 5 125H: Intel BGA 2049, Intel Core Ultra 5 134U: Intel BGA 2551), so each needs a compatible motherboard.
Which has more cores?
The Intel Core Ultra 5 125H has the most cores. Core counts: Intel Core Ultra 5 125H (14 cores), Intel Core Ultra 5 134U (12 cores).