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Differences What are the advantages of each

Front view of Intel Pentium 4 630

Reasons to consider the
Intel Pentium 4 630

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Much higher clock speed 3 GHz vs 1.66 GHz More than 80% 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
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) 3.83 GHz vs 1.9 GHz More than 2x better overclocked clock speed (Air)
Much better overclocked clock speed (Water) 4.33 GHz vs 1.67 GHz More than 2.5x better overclocked clock speed (Water)
Front view of Intel Atom N450

Reasons to consider the
Intel Atom N450

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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
Has a built-in GPU Yes vs No Somewhat common; A separate graphics adapter is not required
Much lower typical power consumption 4.47W vs 68.25W 15.3x lower typical power consumption
Newer Jan, 2010 vs Oct, 2005 Release date over 4 years later
Much lower annual commercial energy cost 4.82 $/year vs 73.58 $/year 15.3x lower annual commercial energy cost
Much lower annual home energy cost 1.32 $/year vs 20.24 $/year 15.3x lower annual home energy cost

Benchmarks Real world tests of Pentium 4 630 vs Atom N450

GeekBench (32-bit) Data courtesy Primate Labs

GeekBench (64-bit) Data courtesy Primate Labs

Atom N450
1,014

GeekBench

Atom N450
1,014

Specifications Full list of technical specs

summary

Pentium 4 630  vs
Atom N450 
Clock speed 3 GHz 1.66 GHz
Cores Single core Single core

features

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

integrated graphics

GPU None GPU
Label N/A Integrated

bus

Architecture FSB DMI
Number of links 1 1

details

Pentium 4 630  vs
Atom N450 
Architecture x86-64 x86-64
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 169,000,000 123,000,000
Max CPUs 1 1
Clock multiplier 15 10
Voltage range 1.2 - 1.4V 0.8 - 1.18V

overclocking

Overclock popularity 8 8
Overclocked clock speed 3.83 GHz 1.9 GHz
Overclocked clock speed (Water) 4.33 GHz 1.67 GHz
PassMark (Overclocked) 786.9 32.3
Overclocked clock speed (Air) 3.83 GHz 1.9 GHz

power consumption

TDP 84W 5.5W
Annual home energy cost 20.24 $/year 1.32 $/year
Annual commercial energy cost 73.58 $/year 4.82 $/year
Typical power consumption 68.25W 4.47W
Intel Pentium 4 630
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Intel Atom N450
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