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Intel Core i5 520M

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Front view of Intel Core i5 520M

Differences What are the advantages of each

Front view of Intel Core i5 520M

Reasons to consider the
Intel Core i5 520M

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Much better performance per dollar 2.08 pt/$ vs 0.64 pt/$ More than 3.2x better performance per dollar
Much better performance per watt 13.49 pt/W vs 2.6 pt/W Around 5.2x better performance per watt
Higher clock speed 2.4 GHz vs 2.13 GHz Around 15% higher clock speed
Supports trusted computing Yes vs No Somewhat common; Allows for safer, more reliable computing
Better turbo clock speed 766 MHz vs 667 MHz Around 15% better turbo clock speed
Better overclocked clock speed (Air) 2.86 GHz vs 2.13 GHz Around 35% better overclocked clock speed (Air)
Slightly better PassMark (Single core) score 1,058 vs 915 More than 15% better PassMark (Single core) score
Better overclocked clock speed (Water) 2.4 GHz vs 2.13 GHz Around 15% better overclocked clock speed (Water)
Front view of Intel Core i3 330E

Reasons to consider the
Intel Core i3 330E

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More l2 cache 1 MB vs 0.5 MB 2x more l2 cache; more data can be stored in the l2 cache for quick access later
More l2 cache per core 0.5 MB/core vs 0.25 MB/core 2x more l2 cache per core

Benchmarks Real world tests of Core i5 520M vs i3 330E

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Core i5 520M  vs
i3 330E 
Clock speed 2.4 GHz 2.13 GHz
Cores Dual core Dual core
Socket type
BGA 1288
rPGA 988A
Is unlocked No No

features

Has a NX bit Yes Yes
Supports trusted computing Yes No
Has virtualization support Yes Yes
Instruction set extensions
SSE2
MMX
SSE4
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
Annual commercial energy cost 30.66 $/year 30.66 $/year
Performance per watt 13.49 pt/W 2.6 pt/W
Typical power consumption 28.44W 28.44W

bus

Architecture DMI DMI
Number of links 1 1
Transfer rate 2,500 MT/s 2,500 MT/s

details

Core i5 520M  vs
i3 330E 
Architecture x86-64 x86-64
Threads 4 4
L2 cache 0.5 MB 1 MB
L2 cache per core 0.25 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
Transistor count 382,000,000 382,000,000
Max CPUs 1 1
Clock multiplier 18 16

overclocking

Overclocked clock speed 2.86 GHz 2.13 GHz
Overclocked clock speed (Water) 2.4 GHz 2.13 GHz
Overclocked clock speed (Air) 2.86 GHz 2.13 GHz

integrated graphics

GPU GPU GPU
Label Intel® HD Graphics Intel® HD Graphics
Number of displays supported 2 2
GPU clock speed 500 MHz 500 MHz
Turbo clock speed 766 MHz 667 MHz

memory controller

Memory controller Built-in Built-in
Memory type
DDR3-1066
DDR3-800
DDR3
Channels Dual Channel Dual Channel
Supports ECC No Yes
Maximum bandwidth 17,066.66 MB/s 17,066.66 MB/s
Maximum memory size 8,499.2 MB 9,000.96 MB
Intel Core i5 520M
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Intel Core i3 330E
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