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.

Intel · Core i5
Intel Core i5-3337U
2C / 4T2.8 GHz17 W
5
Full review
Top pick
Intel · Core i5
Intel Core i5-3365M
2C / 4T3.5 GHz35 W
5.5
Full review

The Bottom Line

Overview & Launch

Brand
Intel
Intel
Market
Mobile
Mobile
Segment
Mobile Ultra-Low Voltage
Mobile
Generation
3rd Generation
3rd Gen Core i5 (Ivy Bridge)
Launched
2013
2012
Status
Discontinued
Discontinued
Codename
Ivy Bridge
Ivy Bridge
Series
Core i5
Core i5
Family
Ivy Bridge
Ivy Bridge
Predecessor
Sandy Bridge ULV
Intel Core i5-2450M
Successor
Haswell ULV
Intel Core i5-4200M

Specifications Compared

Cores & Clocks
Cores
2
2
Threads
4
4
Base Clock
1.8 GHz
2.8 GHz
Boost Clock
2.8 GHz
3.5 GHz
Cache & Power
L3 Cache
3 MB
3 MB
TDP
17 W
35 W
Architecture
Architecture
Ivy Bridge
Ivy Bridge
Process Node
22nm
22nm
Memory
Memory Type
DDR3
Memory Speed
DDR3-1600
DDR3-1600
Memory Channels
Dual (2)
Dual (2)
Max Memory
32 GB
32 GB
Platform & I/O
Socket
Intel BGA 1023
Intel BGA 1023
PCIe Version
PCIe 3.0
PCIe 3.0
PCIe Lanes
16
16
Integrated GPU
Yes
Yes
Unlocked
No
No

Performance Compared

Productivity

Intel Core i5-3337U35

Struggles with heavy web apps but okay for basic text.

Intel Core i5-3365M35

Can handle basic office tasks but struggles with modern web applications and multitasking.

Gaming

Intel Core i5-3337U20

Completely unsuited for modern gaming.

Intel Core i5-3365MBest25

Only suitable for very old or lightweight games at low resolutions and settings.

Virtualization

Intel Core i5-3337U25

Low clock speed and 2 cores make VMs painful.

Intel Core i5-3365MBest30

Supports VT-x and VT-d, but only two cores limit practical virtual machine usage.

Efficiency

Intel Core i5-3337UBest60

17W TDP was excellent in 2013, but outdated now.

Intel Core i5-3365M50

Reasonable for a 2012 35 W mobile chip, but far less efficient than modern processors.

Specialized Performance

AI / ML

Intel Core i5-3337UNone
  • No AI hardware
  • Extremely slow CPU inference
Intel Core i5-3365MNone
  • No AI acceleration hardware
  • No AVX2 or later instruction support
  • Completely unsuitable for any AI workload

Content Creation

Intel Core i5-3337UPoor
Basic Document Editing
Intel Core i5-3365MPoor
Basic Photo Editing (older Photoshop versions)Light Document EditingSimple Spreadsheet Work

Gaming

Intel Core i5-3337UPoor
  • HD 4000 is too weak
  • Low TDP limits sustained performance
Intel Core i5-3365MPoor
  • 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

Gaming
None
Low
Workstations
None
Low
Content Creation
Low
Low
Virtualization
Low
Low

Best CPU by Use Case

Web Browsing
Poor
Office Applications
Fair
1080p Video
Good
Modern Gaming
Poor
Video Editing
Poor
Web Browsing and Office Work
Adequate
HD Video Playback
Good
Light Photo Editing
Adequate
Older Games (pre-2013)
Adequate
Software Development
Limited

Target Audience

Gamers
Content Creators
Developers
Workstation Users
Streamers
Office / Productivity
Targeted
Targeted
Students
Targeted
Targeted

Strengths & Weaknesses

Intel Core i5-3337U

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
Intel Core i5-3365M

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 A10-4655M

    Mobile ULV APU

    Rival
  • Rival
    Compare head-to-head
  • AMD A8-4555M

    Mobile ULV APU

    Rival
  • Intel Core i5-3317U

    Mobile ULV

    Rival
  • Intel Core i5-2467M
    Alt

    Older ULV alternative

  • Intel Core i3-2367M
    Alt

    Cheaper ULV dual-core

  • Intel Pentium 987
    Alt

    Budget ULV alternative

  • Intel Celeron 877
    Alt

    Low-end ULV

  • AMD E2-1800
    Alt

    AMD low-power alternative

Intel Core i5-3365M

  • AMD A10-4600M

    Mobile Mainstream

    Rival
  • AMD A8-4500M

    Mobile Budget

    Rival
  • Intel Core i7-3520M

    Mobile Premium

    Rival
  • Intel Core i3-3110M

    Mobile Entry

    Rival
  • AMD A6-4400M

    Mobile Budget

    Rival
  • Intel Core i5-4200M
    Alt

    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 review

The 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 review

Frequently 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.