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Differences What are the advantages of each

Front view of Intel Pentium III 600B

Reasons to consider the
Intel Pentium III 600B

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Supports more CPUs in SMP configuration 2 vs 1 Twice as many CPUs in SMP configuration
Much lower typical power consumption 28.03W vs 28.44W Almost the same
Much higher Maximum operating temperature 85 °C vs 60.4 °C More than 40% higher Maximum operating temperature
Much lower annual home energy cost 8.31 $/year vs 8.43 $/year Almost the same
Much lower annual commercial energy cost 30.22 $/year vs 30.66 $/year Almost the same
Front view of Intel Celeron M 440

Reasons to consider the
Intel Celeron M 440

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More advanced architecture x86-64 vs x86 A 64-bit architecture allows more RAM to be installed and accessed by the processor
Has a NX bit Yes vs No Somewhat common; Prevents a common class of security exploits

Features Key features of the Pentium III 600B  vs Celeron M 440 

clock speed

L2 cache

Specifications Full list of technical specs


Pentium III 600B  vs
Celeron M 440 
Clock speed 0.6 GHz 2 GHz
Cores Single core Single core


Has a NX bit No Yes
Has virtualization support No No
Instruction set extensions
Supports dynamic frequency scaling No No

power consumption

TDP 34.5W 35W
Annual home energy cost 8.31 $/year 8.43 $/year
Annual commercial energy cost 30.22 $/year 30.66 $/year
Typical power consumption 28.03W 28.44W


Pentium III 600B  vs
Celeron M 440 
Architecture x86 x86-64
Threads 1 1
L2 cache 0.5 MB 1 MB
L2 cache per core 0.5 MB/core 1 MB/core
Manufacture process 250 nm 65 nm
Max CPUs 2 1
Clock multiplier 4 10
Operating temperature Unknown - 85°C Unknown - 60.4°C

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


Architecture FSB FSB
Number of links 1 1
Clock speed 133 MHz 800 MHz
Intel Pentium III 600B
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Intel Celeron M 440
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