CPUBoss Review Our evaluation of 2540M vs 2520M among laptop CPUs (over 15W)

Performance

Benchmark performance using all cores
Core i5 2540M
4.2
Core i5 2520M
4.1
Core i5 3320M
4.5
PCMark 8 Home 3.0 Accelerated, PassMark and 1 more

Single-core Performance

Individual core benchmark performance
Core i5 2540M
2.4
Core i5 2520M
2.2
Core i5 3320M
2.6
PassMark (Single Core), Geekbench 3 Single Core and 1 more

Integrated Graphics

Integrated GPU performance for graphics
Core i5 2540M
n.d.
Core i5 2520M
n.d.
Core i5 3320M
1.6
Sky Diver and Cloud Gate

Integrated Graphics (OpenCL)

Integrated GPU performance for parallel computing
Core i5 2540M
n.d.
Core i5 2520M
n.d.
Core i5 3320M
2.2
CompuBench 1.5 Bitcoin mining and 4 more

Performance per Watt

How efficiently does the processor use electricity?
Core i5 2540M
0.5
Core i5 2520M
0.3
Core i5 3320M
0.0
Sky Diver, Cloud Gate, CompuBench 1.5 Bitcoin mining and 11 more

Value

Are you paying a premium for performance?
Core i5 2540M
10.0
Core i5 2520M
8.8
Core i5 3320M
4.5
Sky Diver, Cloud Gate, CompuBench 1.5 Bitcoin mining and 11 more
1.6

CPUBoss Score

Combination of all six facets
Core i5 2540M
1.6
Core i5 2520M
1.1
Core i5 3320M
0.0

Winner
Intel Core i5 2540M 

CPUBoss recommends the Intel Core i5 2540M  based on its .

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Intel Core i5 2540M

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Front view of Intel Core i5 2520M

Intel Core i5 2520M

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Differences What are the advantages of each

Front view of Intel Core i5 2540M

Reasons to consider the
Intel Core i5 2540M

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CPUBoss is not aware of any important advantages of the 2540M vs the 2520M.
Front view of Intel Core i5 2520M

Reasons to consider the
Intel Core i5 2520M

Report a correction

CPUBoss is not aware of any important advantages of the 2520M vs the 2540M.

Benchmarks Real world tests of Core i5 2540M vs 2520M

PCMark 8 Home 3.0 Accelerated Data courtesy FutureMark

Core i5 2540M
2,236
Core i5 2520M
2,192

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Core i5 2540M
5,066
Core i5 2520M
4,982

GeekBench 3 (Single core) Data courtesy Primate Labs

Core i5 2540M
2,392
Core i5 2520M
2,424

GeekBench 3 (AES single core) Data courtesy Primate Labs

Core i5 2540M
2,030,000 MB/s
Core i5 2520M
2,080,000 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

Core i5 2540M
4,953
Core i5 2520M
4,764

GeekBench (64-bit) Data courtesy Primate Labs

Core i5 2540M
5,413
Core i5 2520M
5,321

PassMark Data courtesy Passmark

Core i5 2540M
3,765
Core i5 2520M
3,567

PassMark (Single Core)

Core i5 2540M
1,560
Core i5 2520M
1,493

Specifications Full list of technical specs

summary

 Core i5 2540M  vs
2520M 
Clock speed 2.6 GHz 2.5 GHz
Turbo clock speed 3.3 GHz 3.2 GHz
Cores Dual core Dual core
Socket type
BGA 1023
rPGA 988B
Is unlocked No No

features
Has a NX bit Yes Yes
Supports trusted computing Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE2
MMX
SSE4
AVX
SSE3
SSE
SSE4.1
SSE4.2
Supplemental SSE3
AES
Supports dynamic frequency scaling Yes Yes

power consumption
TDP 35W 35W
Annual home energy cost 8.43 $/year 8.43 $/year
Performance per watt 20.13 pt/W 20.44 pt/W
Typical power consumption 28.44W 28.44W

bus
Architecture DMI DMI
Number of links 1 1
Transfer rate 5,000 MT/s 5,000 MT/s

details

 Core i5 2540M  vs
2520M 
Architecture x86-64 x86-64
Threads 4 4
L2 cache 1 MB 1 MB
L2 cache per core 0.5 MB/core 0.5 MB/core
L3 cache 3 MB 3 MB
L3 cache per core 1.5 MB/core 1.5 MB/core
Manufacture process 32 nm 32 nm
Max CPUs 1 1
Clock multiplier 26 25
Operating temperature Unknown - 100°C Unknown - 100°C

overclocking
Overclocked clock speed 3.08 GHz 3.05 GHz
Overclocked clock speed (Water) 2.6 GHz 2.5 GHz
Overclocked clock speed (Air) 3.08 GHz 3.05 GHz

integrated graphics
GPU GPU GPU
Label Intel® HD Graphics 3000 HD Graphics 3000
Number of displays supported 2 2
GPU clock speed 650 MHz 650 MHz
Turbo clock speed 1,300 MHz 1,300 MHz

memory controller
Memory controller Built-in Built-in
Memory type
DDR3-1333
DDR3-1066
DDR3
Channels Dual Channel Dual Channel
Supports ECC No No
Maximum bandwidth 21,333.32 MB/s 21,333.32 MB/s
Maximum memory size 16,384 MB 16,384 MB
Intel Core i5 2540M
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Intel Core i5 2520M
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Comments

Showing 1 comment.
TheComputerGuy (11:50 PM, November 1, 2016)
Just get the 2540m, for some reason its usually cheaper than the 2520m in most 2011-2012 laptops
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