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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 per core 0.5 MB/core vs 0.25 MB/core 2x more l2 cache per core
Much lower typical power consumption 59.31W vs 86.05W More than 30% lower typical power consumption
Much better overclocked clock speed (Air) 4.28 GHz vs 3.67 GHz More than 15% better overclocked clock speed (Air)
Higher clock speed 3.33 GHz vs 3.2 GHz Around 5% higher clock speed
Much higher Maximum operating temperature 72.6 °C vs 67.4 °C Around 10% higher Maximum operating temperature
Much lower annual home energy cost 17.59 $/year vs 31.22 $/year Around 45% lower annual home energy cost
Much better overclocked clock speed (Water) 4.86 GHz vs 4.09 GHz Around 20% better overclocked clock speed (Water)
Significantly lower annual commercial energy cost 63.95 $/year vs 84.62 $/year Around 25% lower annual commercial energy cost
Front view of Intel Core i5 3470

Reasons to consider the
Intel Core i5 3470

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More cores 4 vs 2 Twice as many cores; run more applications at once
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
Newer Jun, 2012 vs Jan, 2010 Release date over 2 years later

Benchmarks Real world tests of Core i5 660 vs 3470

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 i5 3470
2,470,000 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

GeekBench

Core i5 660
5,664
Core i5 3470
12,141

3D Mark 11 (Physics)

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Core i5 660  vs
3470 
Clock speed 3.33 GHz 3.2 GHz
Turbo clock speed 3.6 GHz 3.6 GHz
Cores Dual core Quad core
Socket type
LGA 1156
LGA 1155
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 73W 77W
Annual home energy cost 17.59 $/year 31.22 $/year
Annual commercial energy cost 63.95 $/year 84.62 $/year
Performance per watt 9.23 pt/W 4.41 pt/W
Typical power consumption 59.31W 86.05W

bus

Architecture DMI DMI 2.0
Number of links 1 1
Transfer rate 2,500 MT/s 5,000 MT/s

details

Core i5 660  vs
3470 
Architecture x86-64 x86-64
Threads 4 4
L2 cache 1 MB 1 MB
L2 cache per core 0.5 MB/core 0.25 MB/core
L3 cache 4 MB 6 MB
L3 cache per core 2 MB/core 1.5 MB/core
Manufacture process 32 nm 22 nm
Transistor count 382,000,000 1,400,000,000
Max CPUs 1 1
Clock multiplier 25 32
Voltage range 0.65 - 1.4V Unknown - 1.13V
Operating temperature Unknown - 72.6°C Unknown - 67.4°C

overclocking

Overclocked clock speed 4.28 GHz 3.67 GHz
Overclocked clock speed (Water) 4.86 GHz 4.09 GHz
Overclocked clock speed (Air) 4.28 GHz 3.67 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 i5 3470
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