CPU Comparison
Intel Core i3-1215U vs Intel Core i5-1235U
A side-by-side comparison of specs, performance and value. The Intel Core i3-1215U is a 6-core (2P+4E), 8-thread mobile processor built on the Alder Lake-U architecture, featuring UHD Graphics 64EU and a 15W base TDP for mainstream thin-and-light laptops.
The Bottom Line
Overview & Launch
Specifications Compared
Performance Compared
Productivity
Handles standard office applications and web browsing smoothly. Heavier multitasking with many browser tabs and applications can show some slowdown.
Handles office tasks and heavy browser tabs effortlessly.
Gaming
Not designed for gaming. The UHD 64EU can handle very light casual titles but modern AAA games are unplayable.
Only suitable for very light or older 2D games.
Virtualization
8 threads allow for a lightweight VM alongside host tasks, but this is not a virtualization-focused part.
Can run a light VM, but core count is low for heavy dev work.
Efficiency
The 15W base TDP with Intel's Thread Director scheduler enables efficient power distribution between P and E cores.
Top-tier efficiency, allowing for all-day battery life in ultrabooks.
Specialized Performance
AI / ML
- No dedicated AI acceleration hardware
- 2 P-cores provide limited CPU inference capability
- Not suitable for AI or ML development workloads
- Handles background blur and basic audio enhancement.
- Not suited for AI development or inference.
Content Creation
Gaming
- Not designed for gaming workloads
- UHD 64EU can manage 2D games and very basic 3D
- Modern AAA titles will not run at playable frame rates
- Older eSports titles at lowest settings may be marginally playable
- Iris Xe 80EU is sufficient for hardware video decoding.
- Not recommended for 3D gaming.
- Can handle Minecraft or CS:GO at low settings.
Industry Impact
Best CPU by Use Case
Target Audience
Strengths & Weaknesses
Pros
- Hybrid architecture brings efficiency gains to the i3 tier
- 2 P-cores provide responsive single-threaded performance
- 4 E-cores handle background tasks without waking P-cores
- Broad memory compatibility for OEM flexibility
- 15W TDP enables excellent battery life
- 20 PCIe Gen 4 lanes for fast storage
Cons
- Only 8 threads limit heavy multitasking
- 15W base power constrains sustained performance
- E-cores lack Hyper-Threading
- UHD 64EU integrated graphics are weak for 3D workloads
- BGA package means no CPU upgrade path
- E-core L2 cache is 2MB per module (less than Raptor Lake's 4MB)
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
Competitors & Alternatives
Intel Core i3-1215U
- AMD Ryzen 3 5300URival
Budget Mobile
- AMD Ryzen 5 5500URival
Mainstream Mobile
- AMD Ryzen 5 5625URival
Mainstream Mobile
- Apple M1 (base)Rival
Premium Mobile
- Compare head-to-headIntel Core i5-1235URival
Mid-Range Mobile
Raptor Cove P-cores offer better IPC and higher boost clocks for similar power.
Compare head-to-head- AMD Ryzen 3 5425UAlt
Zen 3 architecture provides competitive efficiency for basic computing tasks.
- Apple M1 (base MacBook Air)Alt
Dramatically better performance per watt and battery life at a higher price point.
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
Our Verdict on Each
A competent entry-level hybrid mobile chip that introduced the P+E architecture to the i3 laptop segment. Adequate for everyday tasks, though the 8-thread ceiling and 15W power limit constrain heavier workloads.
Best for: Purchasing a budget to mid-range laptop in 2022-2023 for everyday tasks, schoolwork, and office use where battery life matters more than raw performance.
Read the full reviewA 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 reviewFrequently Asked Questions
Which is better, Intel Core i3-1215U or Intel Core i5-1235U?
Based on our editorial ratings, the Intel Core i5-1235U comes out ahead with a score of 8.2/10. 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 i3-1215U or Intel Core i5-1235U?
For gaming, the Intel Core i5-1235U leads with a gaming performance score of 45/100 among Intel Core i3-1215U and Intel Core i5-1235U.
Do Intel Core i3-1215U and Intel Core i5-1235U use the same socket?
No. They use different sockets (Intel Core i3-1215U: BGA 1744, Intel Core i5-1235U: Intel BGA 1744), so each needs a compatible motherboard.
Which has more cores?
The Intel Core i5-1235U has the most cores. Core counts: Intel Core i3-1215U (6 cores), Intel Core i5-1235U (10 cores).