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Differences What are the advantages of each

Front view of Intel Core i5 660

Reasons to consider the
Intel Core i5 660

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Much higher clock speed 3.33 GHz vs 1.86 GHz Around 80% higher clock speed
Much 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
Much newer manufacturing process 32 nm vs 65 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
More threads 4 vs 1 3 more threads
Much better overclocked clock speed (Air) 4.28 GHz vs 1.87 GHz More than 2.2x better overclocked clock speed (Air)
More cores 2 vs 1 Twice as many cores; run more applications at once
Supports trusted computing Yes vs No Somewhat common; Allows for safer, more reliable computing
Much better overclocked clock speed (Water) 4.86 GHz vs 1.87 GHz More than 2.5x better overclocked clock speed (Water)
Front view of Intel Celeron 445

Reasons to consider the
Intel Celeron 445

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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 Core i5 660  vs Celeron 445 

clock speed

Core i5 660
3.33 GHz
Celeron 445
1.86 GHz

L2 cache

Celeron 445
0.5 MB

overclocked clock speed (air)

Core i5 660
4.28 GHz
Celeron 445
1.87 GHz

overclocked clock speed (water)

Core i5 660
4.86 GHz
Celeron 445
1.87 GHz

TDP

Specifications Full list of technical specs

summary

Core i5 660  vs
Celeron 445 
Clock speed 3.33 GHz 1.86 GHz
Cores Dual core Single core
Socket type
LGA 1156
LGA 771

features

Has a NX bit Yes Yes
Supports trusted computing Yes No
Has virtualization support Yes Yes
Instruction set extensions
SSE2
MMX
SSE4
SSE3
SSE
SSE4.1
SSE4.2
Supplemental SSE3
AES
Supports dynamic frequency scaling Yes 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

Core i5 660  vs
Celeron 445 
Architecture x86-64 x86-64
Threads 4 1
L2 cache 1 MB 0.5 MB
L2 cache per core 0.5 MB/core 0.5 MB/core
Manufacture process 32 nm 65 nm
Max CPUs 1 1

overclocking

Overclocked clock speed 4.28 GHz 1.87 GHz
Overclocked clock speed (Water) 4.86 GHz 1.87 GHz
Overclocked clock speed (Air) 4.28 GHz 1.87 GHz

integrated graphics

GPU GPU None
Label Intel® HD Graphics N/A
Number of displays supported 2 N/A
GPU clock speed 733 MHz N/A

bus

Architecture DMI FSB
Number of links 1 1
Intel Core i5 660
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Intel Celeron 445
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