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Front view of Intel Core i5 660

Intel Core i5 660

CPUBoss Winner

Differences What are the advantages of each

Front view of Intel Xeon E5240

Reasons to consider the
Intel Xeon E5240

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Much more l2 cache 6 MB vs 1 MB 6x more l2 cache; more data can be stored in the l2 cache for quick access later
Much more l2 cache per core 3 MB/core vs 0.5 MB/core 6x more l2 cache per core
Supports more CPUs in SMP configuration 2 vs 1 Twice as many CPUs in SMP configuration
Better overclocked clock speed (Air) 4.89 GHz vs 4.28 GHz Around 15% better overclocked clock speed (Air)
Lower typical power consumption 52.81W vs 59.31W More than 10% lower typical power consumption
Lower annual home energy cost 15.66 $/year vs 17.59 $/year More than 10% lower annual home energy cost
Lower annual commercial energy cost 56.94 $/year vs 63.95 $/year More than 10% lower annual commercial energy cost
Front view of Intel Core i5 660

Reasons to consider the
Intel Core i5 660

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Much better performance per dollar 3.81 pt/$ vs 0.19 pt/$ Around 20.5x better performance per dollar
Has a built-in GPU Yes vs No Somewhat common; A separate graphics adapter is not required
Much newer manufacturing process 32 nm vs 45 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Higher clock speed 3.33 GHz vs 3 GHz More than 10% higher clock speed
Much better performance per watt 9.23 pt/W vs 1.86 pt/W Around 5x better performance per watt
Supports trusted computing Yes vs No Somewhat common; Allows for safer, more reliable computing
More threads 4 vs 2 Twice as many threads
Much better overclocked clock speed (Water) 4.86 GHz vs 3 GHz More than 60% better overclocked clock speed (Water)
Newer Jan, 2010 vs Feb, 2008 Release date over 1 years later
Higher Maximum operating temperature 72.6 °C vs 66 °C Around 10% higher Maximum operating temperature

Benchmarks Real world tests of Xeon E5240 vs Core i5 660

PassMark Data courtesy Passmark

Xeon E5240
2,424
Core i5 660
3,262

PassMark (Single Core)

Xeon E5240
1,277
Core i5 660
1,383

Specifications Full list of technical specs

summary

Xeon E5240  vs
Core i5 660 
Clock speed 3 GHz 3.33 GHz
Cores Dual core Dual core
Socket type
LGA 771
LGA 1156

features

Has a NX bit Yes Yes
Supports trusted computing No Yes
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 65W 73W
Annual home energy cost 15.66 $/year 17.59 $/year
Annual commercial energy cost 56.94 $/year 63.95 $/year
Performance per watt 1.86 pt/W 9.23 pt/W
Typical power consumption 52.81W 59.31W

details

Xeon E5240  vs
Core i5 660 
Architecture x86-64 x86-64
Threads 2 4
L2 cache 6 MB 1 MB
L2 cache per core 3 MB/core 0.5 MB/core
Manufacture process 45 nm 32 nm
Transistor count 410,000,000 382,000,000
Max CPUs 2 1
Clock multiplier 9 25
Voltage range 0.85 - 1.35V 0.65 - 1.4V
Operating temperature Unknown - 66°C Unknown - 72.6°C

overclocking

Overclocked clock speed 4.89 GHz 4.28 GHz
Overclocked clock speed (Water) 3 GHz 4.86 GHz
Overclocked clock speed (Air) 4.89 GHz 4.28 GHz

integrated graphics

GPU None GPU
Label N/A Intel® HD Graphics
Number of displays supported N/A 2
GPU clock speed N/A 733 MHz

bus

Architecture FSB DMI
Number of links 1 1
Intel Xeon E5240
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Intel Core i5 660
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