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Differences What are the advantages of each

Front view of Intel Pentium 4 672

Reasons to consider the
Intel Pentium 4 672

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Much higher clock speed 3.8 GHz vs 1.6 GHz More than 2.2x higher clock speed
Much more l2 cache 2 MB vs 0.5 MB 4x more l2 cache; more data can be stored in the l2 cache for quick access later
More advanced architecture x86-64 vs x86 A 64-bit architecture allows more RAM to be installed and accessed by the processor
Much more l2 cache per core 2 MB/core vs 0.5 MB/core 4x more l2 cache per core
Has virtualization support Yes vs No Somewhat common; Boosts performance of virtual machines
Much better overclocked clock speed (Air) 3.8 GHz vs 1.87 GHz More than 2x better overclocked clock speed (Air)
Much better overclocked clock speed (Water) 5.74 GHz vs 1.6 GHz More than 3.5x better overclocked clock speed (Water)
Front view of Intel Atom N270

Reasons to consider the
Intel Atom N270

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Much newer manufacturing process 45 nm vs 90 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much lower typical power consumption 2.03W vs 93.44W 46x lower typical power consumption
Much lower annual home energy cost 0.6 $/year vs 27.7 $/year 46x lower annual home energy cost
Much lower annual commercial energy cost 2.19 $/year vs 100.74 $/year 46x lower annual commercial energy cost
Newer Jun, 2008 vs Nov, 2005 Release date over 2 years later

Features Key features of the Pentium 4 672  vs Atom N270 

clock speed

Pentium 4 672
3.8 GHz
Atom N270
1.6 GHz

L2 cache

Atom N270
0.5 MB

overclocked clock speed (air)

Pentium 4 672
3.8 GHz
Atom N270
1.87 GHz

overclocked clock speed (water)

Pentium 4 672
5.74 GHz
Atom N270
1.6 GHz

TDP

Specifications Full list of technical specs

summary

Pentium 4 672  vs
Atom N270 
Clock speed 3.8 GHz 1.6 GHz
Cores Single core Single core
Socket type
LGA 775
437

features

Has a NX bit Yes Yes
Supports trusted computing No No
Has virtualization support Yes No
Instruction set extensions
SSE2
MMX
SSE4
SSE3
SSE
Supplemental SSE3
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 115W 2.5W
Annual home energy cost 27.7 $/year 0.6 $/year
Annual commercial energy cost 100.74 $/year 2.19 $/year
Typical power consumption 93.44W 2.03W

bus

Architecture FSB FSB
Number of links 1 1
Clock speed 800 MHz 533 MHz

details

Pentium 4 672  vs
Atom N270 
Architecture x86-64 x86
Threads 2 2
L2 cache 2 MB 0.5 MB
L2 cache per core 2 MB/core 0.5 MB/core
Manufacture process 90 nm 45 nm
Transistor count 169,000,000 47,000,000
Max CPUs 1 1
Clock multiplier 19 12
Voltage range 1.2 - 1.4V 0.9 - 1.16V

overclocking

Overclocked clock speed 3.8 GHz 1.87 GHz
Overclocked clock speed (Water) 5.74 GHz 1.6 GHz
Overclocked clock speed (Air) 3.8 GHz 1.87 GHz

integrated graphics

GPU None None
Label N/A N/A
Latest DirectX N/A N/A
Number of displays supported N/A N/A
GPU clock speed N/A N/A
Turbo clock speed N/A N/A
3DMark06 N/A N/A
Intel Pentium 4 672
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Intel Atom N270
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