CPU Comparison
Intel Core Ultra 5 135H vs Intel Core Ultra 7 255H
A side-by-side comparison of specs, performance and value. The Intel Core Ultra 5 135H is a performance-oriented mobile processor designed for thicker laptops that require sustained power. As part of the Meteor Lake family, it features 14 cores and 18 threads, configured as 4 Performance cores, 8 Efficient cores, and 2 Low-Power Efficient cores. This robust arrangement ensures excellent multi-threaded throughput for creative applications and heavy multitasking. With a base frequency of 3.6 GHz and a maximum turbo of 4.6 GHz, the 135H offers snappy response times for demanding workloads. The integrated Arc Xe-LPG graphics boast 96 Execution Units, providing substantially better graphical performance for light gaming and content acceleration. Operating at a 28W base TDP that can scale up to 115W, it balances performance and thermal output, while the dedicated NPU delivers 11 TOPS for efficient AI task offloading.
The Bottom Line
Overview & Launch
Specifications Compared
Performance Compared
Productivity
Strong multi-core performance for compiling and rendering.
Snappy application performance and strong multi-core scaling for a 28W chip.
Gaming
Can play modern titles at 1080p medium settings thanks to the 96EU iGPU.
Arc 140T graphics allow for respectable 1080p gaming at medium settings without a discrete GPU.
Virtualization
Handles multiple VMs effectively with 18 threads.
Capable of running light VMs, though limited by 16 threads.
Efficiency
Good efficiency at idle, but consumes significant power under load.
Excellent efficiency thanks to LP E-Cores and mixed TSMC nodes.
Specialized Performance
AI / ML
- 11 TOPS NPU offloads background AI
- Strong CPU/GPU AI performance for bursty tasks
- Good for local LLM inference
- NPU provides 13 TOPS
- Arc GPU provides 74 TOPS
- Total platform AI reaches 96 TOPS
Content Creation
Gaming
- 96EU Arc graphics is a major step up
- Supports hardware ray tracing
- Best paired with fast LPDDR5X memory
- Arc 140T is a massive leap over previous iGPUs
- Can handle esports titles at high framerates
- Supports XeSS upscaling for better performance
Industry Impact
Best CPU by Use Case
Target Audience
Strengths & Weaknesses
Pros
- Strong multi-core performance
- Excellent 96EU Arc integrated graphics
- PCIe Gen 5 support
- Integrated NPU for AI
- High maximum turbo power (115W)
Cons
- Can run hot under sustained load
- Battery life is shorter than U-series
- Only 8 PCIe Gen 5 lanes
- Locked multiplier
Pros
- Massive 96 TOPS AI performance
- Powerful Arc 140T integrated graphics
- Excellent 28W power efficiency
- Includes LP E-Cores for battery life
- 20 PCIe Gen 5 lanes
Cons
- Locked multiplier
- L3 cache reduced to 24 MB compared to HX
- Max memory limited to 64 GB
- Cannot match discrete GPU performance
Competitors & Alternatives
Intel Core Ultra 5 135H
- AMD Ryzen 7 7840HSRival
Mobile
- AMD Ryzen 5 8640HSRival
Mobile
- Intel Core Ultra 7 155HRival
Mobile
- Compare head-to-headApple M3 ProRival
Mobile
- Qualcomm Snapdragon X EliteRival
Mobile
Slightly lower clocks for a cheaper price.
Compare head-to-head- AMD Ryzen 5 7640HSAlt
Strong budget-performance alternative.
- Intel Core i5-13500HXAlt
Older but offers more raw cores if portability isn't key.
Intel Core Ultra 7 255H
- AMD Ryzen AI 9 365Rival
Mobile
- AMD Ryzen AI 9 HX 370Rival
Mobile
- Compare head-to-headApple M4Rival
Mobile
- Qualcomm Snapdragon X EliteRival
Mobile
- Intel Core Ultra 7 258VRival
Mobile
Next generation with better AI performance and graphics.
Compare head-to-head- Alt
Excellent alternative for macOS users seeking efficiency.
Compare head-to-head Budget-friendly alternative with similar architecture.
Compare head-to-head- Qualcomm Snapdragon X PlusAlt
Alternative for ARM-based efficiency and battery life.
Our Verdict on Each
A strong performer in the thin-performance category, offering excellent multi-core capabilities and strong integrated graphics.
Best for: If you are a content creator, programmer, or moderate gamer seeking a laptop that balances power and portability, the Core Ultra 5 135H is a smart investment. Its 14-core design and 96EU integrated graphics handle video editing and 1080p gaming admirably. Ensure the laptop has adequate cooling, as the processor can draw up to 115W during sustained loads. Avoid this chip if you strictly need all-day battery life in a thin chassis; the U-series would be more appropriate. For users wanting to future-proof their purchase for AI-enhanced applications without paying for a higher-tier Core Ultra 7, the 135H strikes an excellent price-to-performance ratio in the premium mobile space.
Read the full reviewAn exceptionally well-rounded mobile CPU that perfectly balances power, efficiency, and integrated graphics capabilities for premium laptops.
Best for: Premium ultrabook or thin-and-light creator laptop
Read the full reviewFrequently Asked Questions
Which is faster for gaming, Intel Core Ultra 5 135H or Intel Core Ultra 7 255H?
For gaming, the Intel Core Ultra 5 135H leads with a gaming performance score of 82/100 among Intel Core Ultra 5 135H and Intel Core Ultra 7 255H.
Do Intel Core Ultra 5 135H and Intel Core Ultra 7 255H use the same socket?
Yes — all of these CPUs use the Intel BGA 2049 socket, so they share compatible motherboards.
Which has more cores?
The Intel Core Ultra 7 255H has the most cores. Core counts: Intel Core Ultra 5 135H (14 cores), Intel Core Ultra 7 255H (16 cores).
Which is faster in multi-core benchmarks?
The Intel Core Ultra 7 255H posts the highest multi-core benchmark score. Multi-core results: Intel Core Ultra 7 255H (0). Benchmark figures are approximate and workload-dependent.