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Differences What are the advantages of each

Front view of Intel Celeron D 350

Reasons to consider the
Intel Celeron D 350

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Much lower typical power consumption 17.06W vs 52.81W 3.1x lower typical power consumption
Much lower annual home energy cost 5.06 $/year vs 15.66 $/year 3.1x lower annual home energy cost
Much lower annual commercial energy cost 18.4 $/year vs 56.94 $/year 3.1x lower annual commercial energy cost
Front view of AMD Athlon II X2 270

Reasons to consider the
AMD Athlon II X2 270

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Much higher clock speed 3.4 GHz vs 1.3 GHz More than 2.5x higher clock speed
Much more l2 cache 2 MB vs 1 MB 2x more l2 cache; more data can be stored in the l2 cache for quick access later
Much newer manufacturing process 45 nm vs 90 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
More cores 2 vs 1 Twice as many cores; run more applications at once
More threads 2 vs 1 Twice as many threads
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
Much better overclocked clock speed (Air) 4.02 GHz vs 3.2 GHz More than 25% better overclocked clock speed (Air)
Has virtualization support Yes vs No Somewhat common; Boosts performance of virtual machines
Much better overclocked clock speed (Water) 4.09 GHz vs 3.2 GHz Around 30% better overclocked clock speed (Water)
Newer May, 2011 vs Jun, 2005 Release date over 5 years later

Benchmarks Real world tests of Celeron D 350 vs Athlon II X2 270

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Celeron D 350  vs
Athlon II X2 270 
Clock speed 1.3 GHz 3.4 GHz
Cores Single core Dual core

features

Has a NX bit Yes Yes
Has virtualization support No Yes
Instruction set extensions
SSE4a
SSE2
MMX
SSE3
SSE
3DNow!
Supports dynamic frequency scaling No Yes

bus

Clock speed 400 MHz 3,400 MHz

details

Celeron D 350  vs
Athlon II X2 270 
Threads 1 2
L2 cache 1 MB 2 MB
L2 cache per core 1 MB/core 1 MB/core
Manufacture process 90 nm 45 nm
Max CPUs 1 1

overclocking

Overclocked clock speed 3.2 GHz 4.02 GHz
Overclocked clock speed (Water) 3.2 GHz 4.09 GHz
Overclocked clock speed (Air) 3.2 GHz 4.02 GHz

power consumption

TDP 21W 65W
Annual home energy cost 5.06 $/year 15.66 $/year
Annual commercial energy cost 18.4 $/year 56.94 $/year
Performance per watt 4.04 pt/W 2.03 pt/W
Typical power consumption 17.06W 52.81W
Intel Celeron D 350
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AMD Athlon II X2 270
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