CPU Comparison
Intel Core i5-3337U vs Intel Core i5-3365M
A side-by-side comparison of specs, performance and value. The Intel Core i5-3337U is an ultra-low voltage mobile processor designed for thin-and-light laptops and ultrabooks. Released in early 2013, it is part of the Ivy Bridge family and built on a 22-nanometer process. Featuring two cores and four threads, it operates at a base frequency of 1.8 GHz and can boost up to 2.8 GHz. The defining characteristic of this processor is its remarkably low 17-watt thermal design power, which allows it to function in fanless or minimally cooled chassis. It includes 3 MB of L3 cache and integrates Intel HD Graphics 4000, clocked at 350 MHz with a max dynamic frequency of 1100 MHz. The 3337U was engineered specifically to meet Intel's ultrabook specifications, prioritizing battery life and portability over raw computational power. While its performance is modest, it was a highly efficient chip for its time, enabling a new generation of sleek, highly portable computers that laid the groundwork for modern ultrabooks.
The Bottom Line
Overview & Launch
Specifications Compared
Performance Compared
Productivity
Struggles with heavy web apps but okay for basic text.
Can handle basic office tasks but struggles with modern web applications and multitasking.
Gaming
Completely unsuited for modern gaming.
Only suitable for very old or lightweight games at low resolutions and settings.
Virtualization
Low clock speed and 2 cores make VMs painful.
Supports VT-x and VT-d, but only two cores limit practical virtual machine usage.
Efficiency
17W TDP was excellent in 2013, but outdated now.
Reasonable for a 2012 35 W mobile chip, but far less efficient than modern processors.
Specialized Performance
AI / ML
- No AI hardware
- Extremely slow CPU inference
- No AI acceleration hardware
- No AVX2 or later instruction support
- Completely unsuitable for any AI workload
Content Creation
Gaming
- HD 4000 is too weak
- Low TDP limits sustained performance
- Intel HD 4000 is vastly outdated for modern games
- Can handle games like Minecraft, Terraria, and older titles at low settings
- No dedicated GPU means no realistic path to modern gaming
Industry Impact
Best CPU by Use Case
Target Audience
Strengths & Weaknesses
Pros
- Excellent battery life for 2013
- Very low 17W TDP
- Soldered for thin designs
- Good 1080p video playback
Cons
- Very slow by modern standards
- 1.8 GHz base clock is too low
- Soldered, no upgrades
- No Windows 11 support
- Struggles with modern web
Pros
- Intel HD 4000 was a meaningful graphics leap for integrated solutions in 2012
- 22nm process improved power efficiency
- VT-x and VT-d virtualization support
- TXT (Trusted Execution Technology) for enterprise security
- AES-NI hardware encryption acceleration
Cons
- Only two cores, completely insufficient for modern multi-threaded workloads
- No AVX2 support limits newer software compatibility
- 35 W TDP is high by modern ultrabook standards
- No modern connectivity (USB 4, Thunderbolt)
- Obsolete for any current meaningful use case
Competitors & Alternatives
Intel Core i5-3337U
- AMD A10-4655MRival
Mobile ULV APU
- Compare head-to-headIntel Core i7-3667URival
Mobile ULV
- AMD A8-4555MRival
Mobile ULV APU
- Intel Core i5-3317URival
Mobile ULV
- Intel Core i5-2467MAlt
Older ULV alternative
- Intel Core i3-2367MAlt
Cheaper ULV dual-core
- Intel Pentium 987Alt
Budget ULV alternative
- Intel Celeron 877Alt
Low-end ULV
- AMD E2-1800Alt
AMD low-power alternative
Intel Core i5-3365M
- AMD A10-4600MRival
Mobile Mainstream
- AMD A8-4500MRival
Mobile Budget
- Intel Core i7-3520MRival
Mobile Premium
- Intel Core i3-3110MRival
Mobile Entry
- AMD A6-4400MRival
Mobile Budget
- Intel Core i5-4200MAlt
Haswell successor with better power efficiency and slightly improved graphics.
Slightly higher-clocked Ivy Bridge alternative in a socketed package.
Compare head-to-head
Our Verdict on Each
An efficient chip in 2013, but its low clock speeds make it painfully slow for modern web browsing.
Best for: Extremely cheap legacy laptop for offline writing.
Read the full reviewThe Core i5-3365M was a solid mid-range mobile processor in 2012, offering meaningful improvements over its Sandy Bridge predecessors in graphics and power efficiency. Today, it is obsolete for any demanding workload but can still handle basic tasks in older laptops.
Best for: Keeping an existing laptop with this processor functional for basic tasks
Read the full reviewFrequently Asked Questions
Which is better, Intel Core i5-3337U or Intel Core i5-3365M?
Based on our editorial ratings, the Intel Core i5-3365M comes out ahead with a score of 5.5/10. 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, Intel Core i5-3337U or Intel Core i5-3365M?
For gaming, the Intel Core i5-3365M leads with a gaming performance score of 25/100 among Intel Core i5-3337U and Intel Core i5-3365M.
Which uses less power?
The Intel Core i5-3337U has the lowest rated TDP. Power draw across these chips: Intel Core i5-3337U (17 W), Intel Core i5-3365M (35 W).
Do Intel Core i5-3337U and Intel Core i5-3365M use the same socket?
Yes — all of these CPUs use the Intel BGA 1023 socket, so they share compatible motherboards.
Which is faster in multi-core benchmarks?
The Intel Core i5-3337U posts the highest multi-core benchmark score. Multi-core results: Intel Core i5-3337U (2,600), Intel Core i5-3365M (2,100). Benchmark figures are approximate and workload-dependent.