CPU Comparison
Core i5-1335U vs Core i7-1355U
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.
Flawless performance for office suites, heavy browsing, and video calls.
Gaming
Suitable only for e-sports and older games at reduced settings.
Handles esports titles and older games at 1080p medium settings reasonably well.
Virtualization
Basic VM support, but constrained by core count and memory bandwidth.
Can run lightweight VMs, but limited by 15W thermal envelope.
Efficiency
Exceptional efficiency, ensuring long battery life for on-the-go use.
Excellent idle power consumption and efficient multi-core scaling.
Specialized Performance
AI / ML
- No dedicated AI hardware
- Relies on CPU/GPU for AI tasks
- Uses CPU and integrated GPU for AI tasks
- Supports OpenVINO for optimized inference
- Suitable for background blur and noise cancellation
Content Creation
Gaming
- Integrated GPU limits gaming potential
- Requires dual-channel RAM for best iGPU results
- Not designed for AAA titles
- Capable of 60fps in games like CS:GO and League of Legends
- Struggles with modern AAA titles
- Shares system memory, so DDR5 improves frame rates
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
- Strong 5.0 GHz single-core burst
- Excellent power efficiency
- Iris Xe 96EU graphics
- Modern DDR5 and PCIe 4.0 support
- Great value for ultrabook performance
Cons
- Not unlocked
- Limited to 8 PCIe lanes from CPU
- Soldered to motherboard
- Throttles under sustained multi-core loads
- Only 2 P-cores limits heavy multitasking
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
Core i7-1355U
- AMD Ryzen 7 7730URival
Mobile
- AMD Ryzen 5 7530URival
Mobile
- Intel Core i7-1365URival
Mobile
- Compare head-to-headApple M2Rival
Mobile
- Intel Core i5-1345URival
Mobile
- Intel Core i5-1335UAlt
A more affordable option with slightly lower clocks but similar architecture.
- AMD Ryzen 7 7735UAlt
Better raw multi-core performance and efficiency in the same TDP class.
- Apple M1 AirAlt
Offers unmatched fanless efficiency and battery life for basic productivity.
Newer Meteor Lake chip with better idle battery life and integrated AI.
Compare head-to-head
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 reviewAn excellent mobile CPU that hits the sweet spot between price and performance for everyday ultrabook users.
Best for: Buying a mid-range premium ultrabook for school or office work
Read the full reviewFrequently Asked Questions
Which is better, Core i5-1335U or Core i7-1355U?
Based on our editorial ratings, the Core i7-1355U comes out ahead with a score of 8.6/10. 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 Core i7-1355U?
For gaming, the Core i7-1355U leads with a gaming performance score of 65/100 among Core i5-1335U and Core i7-1355U.
Do Core i5-1335U and Core i7-1355U use the same socket?
Yes — all of these CPUs use the Intel BGA 1744 socket, so they share compatible motherboards.
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), Core i7-1355U (0). Benchmark figures are approximate and workload-dependent.