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Differences What are the advantages of each

Front view of Intel Core i5 2520M

Reasons to consider the
Intel Core i5 2520M

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Has a built-in GPU Yes vs No Somewhat common; A separate graphics adapter is not required
Supports trusted computing Yes vs No Somewhat common; Allows for safer, more reliable computing
Front view of Intel Core Duo L2400

Reasons to consider the
Intel Core Duo L2400

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CPUBoss is not aware of any important advantages of the Core Duo L2400 vs the Core i5 2520M.

Benchmarks Real world tests of Core i5 2520M vs Duo L2400

GeekBench 3 (Multi-core) Data courtesy Primate Labs

GeekBench 3 (Single core) Data courtesy Primate Labs

GeekBench 3 (AES single core) Data courtesy Primate Labs

Core i5 2520M
2,080,000 MB/s
Core Duo L2400
67.5 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

GeekBench

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Core i5 2520M  vs
Duo L2400 
Clock speed 2.5 GHz 1.66 GHz
Cores Dual core Dual core
Socket type
rPGA 988B
479

features

Has a NX bit Yes Yes
Supports trusted computing Yes No
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 15W
Annual home energy cost 8.43 $/year 3.61 $/year
Performance per watt 20.44 pt/W 2.36 pt/W
Typical power consumption 28.44W 12.19W

bus

Architecture DMI FSB
Number of links 1 1

details

Core i5 2520M  vs
Duo L2400 
Architecture x86-64 x86
Threads 4 2
L2 cache 1 MB 2 MB
L2 cache per core 0.5 MB/core 1 MB/core
Manufacture process 32 nm 65 nm
Max CPUs 1 1
Clock multiplier 25 10

overclocking

Overclocked clock speed 3.05 GHz 1.84 GHz
Overclocked clock speed (Water) 2.5 GHz 1.67 GHz
Overclocked clock speed (Air) 3.05 GHz 1.84 GHz

integrated graphics

GPU GPU None
Label HD Graphics 3000 N/A
Number of displays supported 2 N/A
GPU clock speed 650 MHz N/A
Turbo clock speed 1,300 MHz N/A

memory controller

Memory controller Built-in Built-in
Supports ECC No No
Intel Core i5 2520M
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Intel Core Duo L2400
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