CPU Comparison
Intel Core i5-1235U vs Intel Core Ultra 5 135UL
A side-by-side comparison of specs, performance and value. The Intel Core i5-1235U is a low-power mobile processor from the 12th Generation Alder Lake-U family, launched in February 2022.
The Bottom Line
Overview & Launch
Specifications Compared
Performance Compared
Productivity
Handles office tasks and heavy browser tabs effortlessly.
Snappy office performance due to higher turbo clocks.
Gaming
Only suitable for very light or older 2D games.
Not intended for 3D gaming.
Virtualization
Can run a light VM, but core count is low for heavy dev work.
Capable of light server duties but limited by power.
Efficiency
Top-tier efficiency, allowing for all-day battery life in ultrabooks.
Exceptional power-to-performance ratio for edge computing.
Specialized Performance
AI / ML
- Handles background blur and basic audio enhancement.
- Not suited for AI development or inference.
- NPU ideal for smart retail
- 11 TOPS for vision models
- Low power AI processing
Content Creation
Gaming
- Iris Xe 80EU is sufficient for hardware video decoding.
- Not recommended for 3D gaming.
- Can handle Minecraft or CS:GO at low settings.
- 64EU graphics is enough for display out
- Not for gaming
- Good hardware media decode
Industry Impact
Best CPU by Use Case
Target Audience
Strengths & Weaknesses
Pros
- Excellent power efficiency (15W base TDP)
- 10 cores provide great multitasking
- Supports fast LPDDR5 memory
- Good single-core burst performance
- Hardware AV1 decoding
Cons
- Only 2 P-cores limit heavy workloads
- Basic integrated graphics
- Locked multiplier
- Soldered to the motherboard
Pros
- Excellent low-power operation
- Higher turbo clocks than 125UL
- Integrated NPU for AI
- Socketed LGA 1851 design
- Good for silent PC builds
Cons
- Not for gaming
- Limited PCIe lanes
- Locked multiplier
- Low base clock speeds
Competitors & Alternatives
Intel Core i5-1235U
- AMD Ryzen 5 5625URival
Mobile
- AMD Ryzen 7 5825URival
Mobile
- Compare head-to-headIntel Core i7-1255URival
Mobile
- Compare head-to-headApple M2Rival
Mobile
- Qualcomm Snapdragon 8cx Gen 3Rival
Mobile
Even lower power (9W) for longer battery life in thinner designs.
Compare head-to-headBetter sustained performance if you need more multi-core power.
Compare head-to-head- AMD Ryzen 5 6600UAlt
Better integrated graphics for light gaming.
- Alt
Superior efficiency and battery life in the Apple ecosystem.
Compare head-to-head
Intel Core Ultra 5 135UL
- AMD Ryzen 5 8640URival
Mobile/Embedded
- AMD Ryzen 5 8600GERival
Desktop
- Compare head-to-headIntel Core Ultra 5 125ULRival
Desktop
- Compare head-to-headIntel Core i5-14400TRival
Desktop
- AMD Ryzen 5 PRO 7640URival
Mobile/Embedded
- AMD Ryzen 5 5600GEAlt
Proven AM4 mini-PC option.
- Intel Core Ultra 7 165ULAlt
More cores for heavier edge workloads.
Our Verdict on Each
A highly efficient 15W processor that brings 10-core hybrid architecture to mainstream laptops, offering excellent battery life and solid daily performance.
Best for: Buying a thin-and-light laptop for school, office work, or general everyday use.
Read the full reviewA strong low-power desktop CPU offering slightly better burst performance than the 125UL, ideal for SFF and edge AI.
Best for: The Core Ultra 5 135UL is an excellent processor for niche desktop applications requiring low power consumption and integrated AI capabilities. If you are constructing a small form factor PC for a home theater, a network appliance, or a lightweight office machine that runs 24/7, the 135UL provides a perfect balance of adequate performance and minimal heat output. The slight clock speed increase over the 125UL makes it better suited for occasional heavier tasks like photo organization or local AI testing. However, for mainstream gaming or heavy content creation, this processor will bottleneck performance. Choose the 135UL only if your primary goals are silence, continuous operation, and edge AI functionality rather than raw desktop performance or gaming frame rates.
Read the full reviewFrequently Asked Questions
Do Intel Core i5-1235U and Intel Core Ultra 5 135UL use the same socket?
No. They use different sockets (Intel Core i5-1235U: Intel BGA 1744, Intel Core Ultra 5 135UL: Intel Socket 1851), so each needs a compatible motherboard.
Which has more cores?
The Intel Core Ultra 5 135UL has the most cores. Core counts: Intel Core i5-1235U (10 cores), Intel Core Ultra 5 135UL (12 cores).