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Differences What are the advantages of each

Front view of Intel Core i5 660

Reasons to consider the
Intel Core i5 660

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Much 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
Much better overclocked clock speed (Air) 4.28 GHz vs 3.43 GHz Around 25% better overclocked clock speed (Air)
Much more l2 cache per core 0.5 MB/core vs 0.25 MB/core 2x more l2 cache per core
Supports trusted computing Yes vs No Somewhat common; Allows for safer, more reliable computing
Much higher Maximum operating temperature 72.6 °C vs 65.3 °C More than 10% higher Maximum operating temperature
Much better overclocked clock speed (Water) 4.86 GHz vs 3.46 GHz More than 40% better overclocked clock speed (Water)
Front view of Intel Core i3 3220

Reasons to consider the
Intel Core i3 3220

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Much newer manufacturing process 22 nm vs 32 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Supports more RAM 32,768 MB vs 16,773.12 MB Supports more than 95% more RAM
More number of displays supported 3 vs 2 1 more number of displays supported
Significantly lower typical power consumption 44.69W vs 59.31W Around 25% lower typical power consumption
Lower annual commercial energy cost 48.18 $/year vs 63.95 $/year Around 25% lower annual commercial energy cost
Lower annual home energy cost 13.25 $/year vs 17.59 $/year Around 25% lower annual home energy cost
Newer Sep, 2012 vs Jan, 2010 Release date over 2 years later

Benchmarks Real world tests of Core i5 660 vs i3 3220

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 660
1,640,000 MB/s
Core i3 3220
173,000 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

GeekBench

3D Mark 11 (Physics)

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Core i5 660  vs
i3 3220 
Clock speed 3.33 GHz 3.3 GHz
Cores Dual core Dual core
Socket type
LGA 1156
LGA 1155
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
AVX
SSE3
SSE
SSE4.1
SSE4.2
Supplemental SSE3
AES
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 73W 55W
Annual home energy cost 17.59 $/year 13.25 $/year
Annual commercial energy cost 63.95 $/year 48.18 $/year
Performance per watt 9.23 pt/W 2.69 pt/W
Typical power consumption 59.31W 44.69W

bus

Architecture DMI DMI
Number of links 1 1
Transfer rate 2,500 MT/s 5,000 MT/s

details

Core i5 660  vs
i3 3220 
Architecture x86-64 x86-64
Threads 4 4
L2 cache 1 MB 0.5 MB
L2 cache per core 0.5 MB/core 0.25 MB/core
L3 cache 4 MB 3 MB
L3 cache per core 2 MB/core 1.5 MB/core
Manufacture process 32 nm 22 nm
Max CPUs 1 1
Clock multiplier 25 33
Operating temperature Unknown - 72.6°C Unknown - 65.3°C

overclocking

Overclocked clock speed 4.28 GHz 3.43 GHz
Overclocked clock speed (Water) 4.86 GHz 3.46 GHz
Overclocked clock speed (Air) 4.28 GHz 3.43 GHz

integrated graphics

GPU GPU GPU
Label Intel® HD Graphics Intel® HD Graphics 2500
Number of displays supported 2 3
GPU clock speed 733 MHz 650 MHz

memory controller

Memory controller Built-in Built-in
Memory type
DDR3-1600
DDR3-1333
DDR3-1066
DDR3
Channels Dual Channel Dual Channel
Maximum bandwidth 21,333.32 MB/s 25,600 MB/s
Maximum memory size 16,773.12 MB 32,768 MB
Intel Core i5 660
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Intel Core i3 3220
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