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Differences What are the advantages of each

Front view of Intel Celeron 900

Reasons to consider the
Intel Celeron 900

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Much newer manufacturing process 45 nm vs 65 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
More l2 cache 1 MB vs 0.5 MB 2x more l2 cache; more data can be stored in the l2 cache for quick access later
Higher clock speed 2.2 GHz vs 1.86 GHz Around 20% higher clock speed
Significantly lower typical power consumption 28.44W vs 52.81W More than 45% lower typical power consumption
Much more l2 cache per core 1 MB/core vs 0.5 MB/core 2x more l2 cache per core
Significantly better overclocked clock speed (Air) 3.11 GHz vs 1.87 GHz More than 65% better overclocked clock speed (Air)
Significantly lower annual home energy cost 8.43 $/year vs 15.66 $/year More than 45% lower annual home energy cost
Significantly lower annual commercial energy cost 30.66 $/year vs 56.94 $/year More than 45% lower annual commercial energy cost
Better overclocked clock speed (Water) 2.2 GHz vs 1.87 GHz Around 20% better overclocked clock speed (Water)
Front view of Intel Celeron 445

Reasons to consider the
Intel Celeron 445

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Supports dynamic frequency scaling Yes vs No Somewhat common; Allows for maximum performance when needed, while conserving power and minimizing heat production when not needed
Has virtualization support Yes vs No Somewhat common; Boosts performance of virtual machines

Features Key features of the Celeron 900  vs 445 

clock speed

Celeron 900
2.2 GHz
Celeron 445
1.86 GHz

L2 cache

Celeron 445
0.5 MB

overclocked clock speed (air)

Celeron 900
3.11 GHz
Celeron 445
1.87 GHz

overclocked clock speed (water)

Celeron 900
2.2 GHz
Celeron 445
1.87 GHz

TDP

Specifications Full list of technical specs

summary

Celeron 900  vs
445 
Clock speed 2.2 GHz 1.86 GHz
Cores Single core Single core
Socket type
478
LGA 771

features

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

power consumption

TDP 35W 65W
Annual home energy cost 8.43 $/year 15.66 $/year
Annual commercial energy cost 30.66 $/year 56.94 $/year
Typical power consumption 28.44W 52.81W

details

Celeron 900  vs
445 
Architecture x86-64 x86-64
Threads 1 1
L2 cache 1 MB 0.5 MB
L2 cache per core 1 MB/core 0.5 MB/core
Manufacture process 45 nm 65 nm
Max CPUs 1 1

overclocking

Overclocked clock speed 3.11 GHz 1.87 GHz
Overclocked clock speed (Water) 2.2 GHz 1.87 GHz
Overclocked clock speed (Air) 3.11 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

bus

Architecture FSB FSB
Number of links 1 1
Clock speed 800 MHz 1,066 MHz
Intel Celeron 900
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Intel Celeron 445
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