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Differences What are the advantages of each

Front view of Intel Pentium N3540

Reasons to consider the
Intel Pentium N3540

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Much newer manufacturing process 22 nm vs 90 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much lower typical power consumption 6.09W vs 93.44W 15.3x lower typical power consumption
Has a built-in GPU Yes vs No Somewhat common; A separate graphics adapter is not required
Has virtualization support Yes vs No Somewhat common; Boosts performance of virtual machines
Newer Jul, 2014 vs Jan, 2005 Release date over 9 years later
More cores 4 vs 1 3 more cores; run more applications at once
Much lower annual home energy cost 1.81 $/year vs 27.7 $/year 15.3x lower annual home energy cost
Much lower annual commercial energy cost 6.57 $/year vs 100.74 $/year 15.3x lower annual commercial energy cost
More threads 4 vs 2 Twice as many threads
Front view of Intel Pentium 4 660

Reasons to consider the
Intel Pentium 4 660

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Much higher clock speed 3.6 GHz vs 2.16 GHz More than 65% higher clock speed
Much more l2 cache per core 2 MB/core vs 0.5 MB/core 4x more l2 cache per core
Much better overclocked clock speed (Air) 4.17 GHz vs 2.65 GHz More than 55% better overclocked clock speed (Air)
Much better overclocked clock speed (Water) 4.07 GHz vs 2.17 GHz Around 90% better overclocked clock speed (Water)

Features Key features of the Pentium N3540  vs 4 660 

clock speed

Pentium N3540
2.16 GHz
Pentium 4 660
3.6 GHz

L2 cache

overclocked clock speed (air)

Pentium N3540
2.65 GHz
Pentium 4 660
4.17 GHz

overclocked clock speed (water)

Pentium N3540
2.17 GHz
Pentium 4 660
4.07 GHz

Specifications Full list of technical specs

summary

Pentium N3540  vs
4 660 
Clock speed 2.16 GHz 3.6 GHz
Cores Quad core Single core

features

Has a NX bit Yes Yes
Has virtualization support Yes No
Instruction set extensions
SSE2
MMX
SSE3
EM64T
SSE
AES
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 7.5W 115W
Annual home energy cost 1.81 $/year 27.7 $/year
Annual commercial energy cost 6.57 $/year 100.74 $/year
Typical power consumption 6.09W 93.44W

details

Pentium N3540  vs
4 660 
Architecture x86-64 x86-64
Threads 4 2
L2 cache 2 MB 2 MB
L2 cache per core 0.5 MB/core 2 MB/core
Manufacture process 22 nm 90 nm
Max CPUs 1 1

overclocking

Overclocked clock speed 2.65 GHz 4.17 GHz
Overclocked clock speed (Water) 2.17 GHz 4.07 GHz
Overclocked clock speed (Air) 2.65 GHz 4.17 GHz

integrated graphics

GPU GPU None
Label Intel® HD Graphics N/A
Number of displays supported 2 N/A
GPU clock speed 313 MHz N/A
Turbo clock speed 896 MHz N/A

bus

Architecture FSB FSB
Number of links 1 1
Intel Pentium N3540
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Intel Pentium 4 660
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