CPU Comparison
Intel Core i3-1315U vs Intel Core Ultra 5 115U
A side-by-side comparison of specs, performance and value. The Intel Core i3-1315U is a 6-core (2P+4E), 8-thread mobile processor with UHD Graphics 64EU running at 15W TDP, designed for mainstream thin-and-light laptops balancing performance and battery life.
The Bottom Line
Overview & Launch
Specifications Compared
Performance Compared
Productivity
Handles office applications, web browsing with multiple tabs, and light multitasking well. Heavier applications like large Excel files or multiple browser windows with rich content show some slowdown.
Snappy for office apps and web browsing.
Gaming
Not designed for gaming. UHD 64EU can handle older or very light games at low settings, but modern AAA titles are not playable at acceptable frame rates.
Only suitable for very old or lightweight 2D games.
Virtualization
8 threads allow for a lightweight VM alongside host tasks, but this is not a virtualization-focused processor.
Not recommended due to low core count.
Efficiency
15W TDP with Intel's Dynamic Tuning Technology enables excellent battery life in well-designed laptops, typically 8-12 hours of light use.
Excellent efficiency for all-day battery life.
Specialized Performance
AI / ML
- No dedicated AI acceleration
- 2 P-cores provide limited CPU inference capability
- Not suitable for AI/ML development or inference
- 11 TOPS NPU included
- Good for background blur and noise cancellation
- Not for heavy AI generation
Content Creation
Gaming
- Not designed for gaming
- UHD 64EU can handle casual 2D games and very light 3D
- Minecraft and similar lightweight titles may run acceptably
- Any modern AAA game will be unplayable
- 48EU graphics is entry-level
- Fine for browser games
- Not suitable for modern 3D titles
Industry Impact
Best CPU by Use Case
Target Audience
Strengths & Weaknesses
Pros
- 2 P-cores provide responsive single-threaded performance
- 4 E-cores handle background tasks efficiently
- 15W TDP enables excellent battery life
- UHD 64EU with hardware AV1 decoding
- Broad memory type support for OEM flexibility
- Significant improvement over 12th gen i3-1215U in single-threaded tasks
Cons
- Only 8 threads limit heavy multitasking
- 15W base power constrains sustained performance
- No dedicated GPU means gaming is not viable
- E-cores lack Hyper-Threading
- BGA package means no upgrade path
- 10MB L3 cache is shared across all 6 cores
Pros
- Excellent power efficiency
- Integrated NPU for AI tasks
- Good burst performance for daily tasks
- Supports fast LPDDR5X memory
- Affordable entry to Core Ultra
Cons
- Low core count limits multitasking
- Only 48EU graphics
- No PCIe Gen 5 support
- Locked multiplier
Competitors & Alternatives
Intel Core i3-1315U
- AMD Ryzen 3 7320URival
Mainstream Mobile
- AMD Ryzen 5 7520URival
Mainstream Mobile
- AMD Ryzen 5 7530URival
Mainstream Mobile
- Apple M2 (base)Rival
Premium Mobile
- Compare head-to-headIntel Core i5-1235URival
Previous Gen Mid-Range
- Intel Core i5-1335UAlt
2P+8E with 12 threads provides significantly better multitasking if the budget allows.
Previous generation with same core count may offer better value if found at a lower price.
Compare head-to-head- Apple M2 (base MacBook Air)Alt
Dramatically better performance and battery life at a higher price point.
Intel Core Ultra 5 115U
- AMD Ryzen 5 8640URival
Mobile
- AMD Ryzen 5 7640URival
Mobile
- Compare head-to-headIntel Core Ultra 5 125URival
Mobile
- Qualcomm Snapdragon X PlusRival
Mobile
- Compare head-to-headApple M2Rival
Mobile
More E-Cores and better graphics for a small price bump.
Compare head-to-headOlder Raptor Lake architecture but similar performance.
Compare head-to-head- Intel Core i5-1334UAlt
Cheaper, older generation alternative.
- AMD Ryzen 3 7440UAlt
Competitive budget alternative.
Our Verdict on Each
A competent mainstream mobile chip that improves on the previous generation with Raptor Cove P-cores. The 2P+4E configuration provides adequate multitasking for everyday use, though heavy workloads will still expose its limitations.
Best for: Mainstream laptop purchase in the $400-$700 range for everyday computing, school, or office work where battery life and adequate performance are both important.
Read the full reviewA solid entry-level Meteor Lake chip that delivers great battery life and AI features for basic daily tasks.
Best for: The Core Ultra 5 115U is the ideal processor for students, office workers, and casual users who prioritize battery life and affordability. If your daily routine involves document editing, web conferencing, and streaming video, this CPU will handle these tasks effortlessly while providing excellent battery longevity. The integrated NPU adds value by preparing your device for future Windows AI features. However, this is not the processor for video editing, 3D rendering, or gaming; its reduced core count and 48EU graphics are not designed for heavy workloads. If you occasionally dabble in photo editing or light gaming, consider stepping up to the 135U. For purely administrative and educational tasks, the 115U offers outstanding value and efficiency.
Read the full reviewFrequently Asked Questions
Which is better, Intel Core i3-1315U or Intel Core Ultra 5 115U?
Based on our editorial ratings, the Intel Core Ultra 5 115U comes out ahead with a score of 7.8/10. 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 i3-1315U or Intel Core Ultra 5 115U?
For gaming, the Intel Core Ultra 5 115U leads with a gaming performance score of 50/100 among Intel Core i3-1315U and Intel Core Ultra 5 115U.
Do Intel Core i3-1315U and Intel Core Ultra 5 115U use the same socket?
No. They use different sockets (Intel Core i3-1315U: BGA 1744, Intel Core Ultra 5 115U: Intel BGA 2049), so each needs a compatible motherboard.
Which has more cores?
The Intel Core Ultra 5 115U has the most cores. Core counts: Intel Core i3-1315U (6 cores), Intel Core Ultra 5 115U (8 cores).