CPU Comparison
Core i5-1335U vs Intel Core Ultra 5 135U
A side-by-side comparison of specs, performance and value. The Intel Core i5-1335U is a 10-core mobile processor tailored for mainstream ultrabooks. Featuring 2 Performance cores and 8 Efficient cores, it balances daily responsiveness with power efficiency. Operating at a 15W base TDP, it can boost up to 4.6 GHz when demanding applications require quick bursts of speed. The integrated Iris Xe Graphics with 80 Execution Units handles 4K video decoding and casual gaming with ease. Supporting DDR4 and DDR5 memory alongside PCIe Gen 4, the i5-1335U is a versatile engine for everyday computing, providing modern connectivity features in a thermally constrained mobile package.
The Bottom Line
Overview & Launch
Specifications Compared
Performance Compared
Productivity
Smooth performance for everyday office tasks and multitasking.
Snappy application launching and smooth multitasking for office workloads.
Gaming
Suitable only for e-sports and older games at reduced settings.
Capable of running esports titles and older games at 1080p medium settings.
Virtualization
Basic VM support, but constrained by core count and memory bandwidth.
Can handle light virtualization tasks, though limited by core count.
Efficiency
Exceptional efficiency, ensuring long battery life for on-the-go use.
Exceptional power efficiency thanks to LP E-Cores and disaggregated tiles.
Specialized Performance
AI / ML
- No dedicated AI hardware
- Relies on CPU/GPU for AI tasks
- 11 TOPS NPU for background AI tasks
- Supports OpenVINO
- Reduces CPU/GPU load during video calls
Content Creation
Gaming
- Integrated GPU limits gaming potential
- Requires dual-channel RAM for best iGPU results
- Not designed for AAA titles
- Arc Xe-LPG 64EU handles older titles well
- Supports hardware ray tracing
- Not suitable for AAA gaming at high settings
Industry Impact
Best CPU by Use Case
Target Audience
Strengths & Weaknesses
Pros
- Great power efficiency
- Solid single-core performance
- 10-core hybrid design
- Iris Xe 80EU graphics
- DDR5 support
Cons
- Low base clock speed
- Weak for heavy gaming
- BGA soldered
- Sustained performance limited by cooling
- Not an enthusiast chip
Pros
- Excellent power efficiency
- Integrated NPU for AI tasks
- Improved Arc Xe-LPG graphics
- LP E-Cores extend standby time
- Supports fast LPDDR5X memory
Cons
- Limited PCIe lanes (12)
- No PCIe Gen 5 support on this model
- Multiplier is locked
- Soldered to motherboard (BGA)
Competitors & Alternatives
Core i5-1335U
- AMD Ryzen 5 7530URival
Mobile
- AMD Ryzen 5 7640URival
Mobile
- Compare head-to-headApple M2Rival
Mobile
- Intel Core i5-1345URival
Mobile
- Qualcomm Snapdragon 8cx Gen 3Rival
Mobile
- Intel Core i7-1355UAlt
More EUs in the iGPU and higher clocks for better graphics.
- AMD Ryzen 7 7735UAlt
Stronger integrated Radeon graphics.
More P-cores for better sustained multi-threading at the cost of battery.
Compare head-to-head- Alt
Incredible battery life and passively cooled designs.
Compare head-to-head
Intel Core Ultra 5 135U
- AMD Ryzen 5 8640URival
Mobile
- AMD Ryzen 7 7840URival
Mobile
- Intel Core Ultra 7 155URival
Mobile
- Qualcomm Snapdragon X EliteRival
Mobile
- Compare head-to-headApple M3Rival
Mobile
Slightly lower clocks for better battery life.
Compare head-to-head- AMD Ryzen 5 7640UAlt
Strong competitor with RDNA 3 graphics.
- Intel Core i5-1340PAlt
Older architecture but higher base wattage.
- AMD Ryzen 7 8840UAlt
Better dedicated AI engine performance.
Our Verdict on Each
A highly capable mobile chip for daily tasks and light workloads, offering great efficiency and adequate burst speed for typical user needs.
Best for: Purchasing a mainstream ultrabook for school or office use.
Read the full reviewA well-balanced thin-and-light processor offering excellent battery life, capable integrated graphics, and forward-looking NPU technology.
Best for: The Core Ultra 5 135U is an excellent choice for users prioritizing portability and battery life without sacrificing everyday responsiveness. If you are in the market for a thin-and-light laptop for productivity, web browsing, and media consumption, this processor offers a compelling balance. The inclusion of an NPU ensures future-proofing for upcoming Windows AI features. However, if your workflow involves heavy sustained multi-threaded rendering or high-end gaming, you should look for laptops equipped with higher-wattage H-series processors or dedicated GPUs. For the everyday professional and student, the 135U provides more than enough performance while ensuring all-day battery life.
Read the full reviewFrequently Asked Questions
Which is better, Core i5-1335U or Intel Core Ultra 5 135U?
Based on our editorial ratings, the Intel Core Ultra 5 135U 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, Core i5-1335U or Intel Core Ultra 5 135U?
For gaming, the Intel Core Ultra 5 135U leads with a gaming performance score of 75/100 among Core i5-1335U and Intel Core Ultra 5 135U.
Do Core i5-1335U and Intel Core Ultra 5 135U use the same socket?
No. They use different sockets (Core i5-1335U: Intel BGA 1744, Intel Core Ultra 5 135U: Intel BGA 2049), so each needs a compatible motherboard.
Which has more cores?
The Intel Core Ultra 5 135U has the most cores. Core counts: Core i5-1335U (10 cores), Intel Core Ultra 5 135U (12 cores).
Which is faster in multi-core benchmarks?
The Core i5-1335U posts the highest multi-core benchmark score. Multi-core results: Core i5-1335U (9,300). Benchmark figures are approximate and workload-dependent.