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Differences What are the advantages of each

Front view of Intel Celeron D 330

Reasons to consider the
Intel Celeron D 330

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Much higher clock speed 2.66 GHz vs 1.86 GHz Around 45% higher clock speed
Much better overclocked clock speed (Air) 3.53 GHz vs 1.87 GHz Around 90% better overclocked clock speed (Air)
Much better overclocked clock speed (Water) 3.9 GHz vs 1.87 GHz More than 2x better overclocked clock speed (Water)
Front view of Intel Celeron 445

Reasons to consider the
Intel Celeron 445

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Much newer manufacturing process 65 nm vs 90 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
More advanced architecture x86-64 vs x86 A 64-bit architecture allows more RAM to be installed and accessed by the processor
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 a NX bit Yes vs No Somewhat common; Prevents a common class of security exploits
Has virtualization support Yes vs No Somewhat common; Boosts performance of virtual machines
Much more l2 cache per core 0.5 MB/core vs 0.25 MB/core 2x more l2 cache per core
Lower typical power consumption 52.81W vs 59.31W More than 10% lower typical power consumption
Lower annual commercial energy cost 56.94 $/year vs 63.95 $/year More than 10% lower annual commercial energy cost
Lower annual home energy cost 15.66 $/year vs 17.59 $/year More than 10% lower annual home energy cost

Features Key features of the Celeron D 330  vs 445 

clock speed

Celeron D 330
2.66 GHz
Celeron 445
1.86 GHz

L2 cache

Celeron D 330
0.25 MB
Celeron 445
0.5 MB

overclocked clock speed (air)

Celeron D 330
3.53 GHz
Celeron 445
1.87 GHz

overclocked clock speed (water)

Celeron D 330
3.9 GHz
Celeron 445
1.87 GHz

Specifications Full list of technical specs

summary

Celeron D 330  vs
445 
Clock speed 2.66 GHz 1.86 GHz
Cores Single core Single core
Socket type
478
LGA 771

features

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

power consumption

TDP 73W 65W
Annual home energy cost 17.59 $/year 15.66 $/year
Annual commercial energy cost 63.95 $/year 56.94 $/year
Typical power consumption 59.31W 52.81W

details

Celeron D 330  vs
445 
Architecture x86 x86-64
Threads 1 1
L2 cache 0.25 MB 0.5 MB
L2 cache per core 0.25 MB/core 0.5 MB/core
Manufacture process 90 nm 65 nm
Max CPUs 1 1

overclocking

Overclocked clock speed 3.53 GHz 1.87 GHz
Overclocked clock speed (Water) 3.9 GHz 1.87 GHz
Overclocked clock speed (Air) 3.53 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 533 MHz 1,066 MHz
Intel Celeron D 330
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Intel Celeron 445
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