CPU Comparison

Core i5-2520M vs Core i5-2537M

A side-by-side comparison of specs, performance and value. The Intel Core i5-2520M (Socket G2) is the socketed variant of the popular Sandy Bridge business dual-core processor, allowing for CPU upgrades in compatible laptops.

Top pick
Intel · Core i5
Core i5-2520M
2C / 4T0 GHz35 W
4.5
Full review
Intel · Core i5
Core i5-2537M
2C / 4T0 GHz17 W
4
Full review

The Bottom Line

Overview & Launch

Brand
Intel
Intel
Market
Mobile
Mobile
Segment
Mobile
Mobile
Generation
2nd Gen (Sandy Bridge)
2nd Gen (Sandy Bridge)
Launched
2011
2011
Status
Discontinued
Discontinued
Codename
Sandy Bridge
Sandy Bridge
Series
Core i5
Core i5
Family
Sandy Bridge
Sandy Bridge
Predecessor
Core i5-580M
Core i5-560UM
Successor
Core i5-3210M
Core i5-3427U

Specifications Compared

Cores & Clocks
Cores
2
2
Threads
4
4
Base Clock
2.5 GHz
1.4 GHz
Boost Clock
0 GHz
0 GHz
Cache & Power
L3 Cache
3 MB
3 MB
TDP
35 W
17 W
Architecture
Architecture
Sandy Bridge
Sandy Bridge
Process Node
32 nm
32 nm
Memory
Memory Type
DDR3
DDR3
Memory Speed
DDR3-1333
DDR3-1333
Memory Channels
Dual (2)
Dual (2)
Max Memory
16 GB
16 GB
Platform & I/O
Socket
Intel Socket G2 (988B)
Intel BGA 1023
PCIe Version
PCIe 2.0
PCIe 2.0
PCIe Lanes
16
16
Integrated GPU
Yes
Yes
Unlocked
No
No

Performance Compared

Productivity

Core i5-2520MBest25

Adequate for lightweight office work and web browsing.

Core i5-2537M18

Adequate for basic enterprise tasks but slow by any modern metric.

Gaming

Core i5-2520MBest12

Not suitable for modern 3D games.

Core i5-2537M5

Completely unsuitable for gaming.

Efficiency

Core i5-2520M30

Standard 35W mobile power draw for 2011.

Core i5-2537MBest55

Excellent power efficiency for its era, enabling thin business laptops.

Specialized Performance

AI / ML

Core i5-2520MNot Applicable
    Core i5-2537MNot Applicable

      Content Creation

      Core i5-2520MPoor
      Core i5-2537MNot Applicable

      Gaming

      Core i5-2520MPoor
      • Outdated architecture
      • Weak iGPU
      Core i5-2537MVery Poor
      • 1.4 GHz base clock
      • Intel HD 3000 graphics
      • Not intended for gaming

      Industry Impact

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

      Best CPU by Use Case

      Upgrading Old Laptops
      Excellent
      Legacy Software
      Good
      Home Lab Virtualization
      Adequate
      Modern Gaming
      Poor
      Secure Remote Access
      Good
      Virtual Machines (Light)
      Adequate
      Document Editing
      Good
      Media Consumption
      Adequate

      Target Audience

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

      Strengths & Weaknesses

      Core i5-2520M

      Pros

      • Socketed for easy upgrades
      • Enterprise VT-d and TXT support
      • Very cheap on the used market
      • Reliable

      Cons

      • Obsolete performance
      • 35W TDP limits battery life in older laptops
      • No modern OS support
      • Limited to DDR3
      Core i5-2537M

      Pros

      • Enterprise security features in a ULV package
      • Very low power consumption
      • Hyper-Threading support
      • Enabled premium ultrabook designs

      Cons

      • Extremely low clock speed
      • Obsolete for modern work
      • Soldered BGA package
      • No modern OS support

      Competitors & Alternatives

      Core i5-2520M

      Core i5-2537M

      • AMD A4-3305M

        Mobile

        Rival
      • Intel Core i5-2467M

        Mobile

        Rival
      • Intel Core i7-2677M

        Mobile

        Rival
      • Intel Core i3-2367M

        Mobile

        Rival
      • AMD E-450

        Mobile

        Rival
      • Intel Core i5-3427U
        Alt

        Ivy Bridge ULV with better graphics and efficiency.

      • Intel Core i3-3227U
        Alt

        Budget Ivy Bridge ULV for basic tasks.

      • AMD A6-4455M
        Alt

        Competing ULV with stronger graphics.

      • Intel Pentium 2117U
        Alt

        Modern budget ULV replacement.

      Our Verdict on Each

      Core i5-2520MSituational

      Identical in performance to the BGA variant, but highly prized today by tinkerers because its rPGA988B socket allows for easy swapping and upgrades to i7 processors.

      Best for: Upgrading an existing Socket G2 laptop to an i7

      Read the full review
      Core i5-2537MSituational

      A unique ULV chip that bridged the gap between extreme portability and enterprise security needs, though its 1.4 GHz base clock severely limits its usefulness today.

      Best for: Running a legacy secure enterprise environment

      Read the full review

      Frequently Asked Questions

      Which is better, Core i5-2520M or Core i5-2537M?

      Based on our editorial ratings, the Core i5-2520M comes out ahead with a score of 4.5/10. 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, Core i5-2520M or Core i5-2537M?

      For gaming, the Core i5-2520M leads with a gaming performance score of 12/100 among Core i5-2520M and Core i5-2537M.

      Which uses less power?

      The Core i5-2537M has the lowest rated TDP. Power draw across these chips: Core i5-2520M (35 W), Core i5-2537M (17 W).

      Do Core i5-2520M and Core i5-2537M use the same socket?

      No. They use different sockets (Core i5-2520M: Intel Socket G2 (988B), Core i5-2537M: Intel BGA 1023), so each needs a compatible motherboard.