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Differences What are the advantages of each

Front view of AMD Sempron 145

Reasons to consider the
AMD Sempron 145

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Significantly lower typical power consumption 36.56W vs 52.81W More than 30% lower typical power consumption
Slightly better overclocked clock speed (Air) 4.05 GHz vs 4.02 GHz Almost the same
Significantly lower annual home energy cost 10.84 $/year vs 15.66 $/year More than 30% lower annual home energy cost
Significantly lower annual commercial energy cost 39.42 $/year vs 56.94 $/year More than 30% lower annual commercial energy cost
Better overclocked clock speed (Water) 4.28 GHz vs 4.09 GHz Around 5% better overclocked clock speed (Water)
Front view of AMD Athlon II X2 270

Reasons to consider the
AMD Athlon II X2 270

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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 higher clock speed 3.4 GHz vs 2.8 GHz More than 20% higher clock speed
Much better PassMark score 1,990 vs 800 Around 2.5x better PassMark score
Much better geekbench 2 (32-bit) score 3,028 vs 1,332 More than 2.2x better geekbench 2 (32-bit) score
More cores 2 vs 1 Twice as many cores; run more applications at once
More threads 2 vs 1 Twice as many threads
Newer May, 2011 vs May, 2010 Release date a year later

Benchmarks Real world tests of Sempron 145 vs Athlon II X2 270

GeekBench 3 (Multi-core) Data courtesy Primate Labs

GeekBench 3 (Single core) Data courtesy Primate Labs

GeekBench 3 (AES single core) Data courtesy Primate Labs

Sempron 145
111,900 MB/s
Athlon II X2 270
136,900 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

GeekBench

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Sempron 145  vs
Athlon II X2 270 
Clock speed 2.8 GHz 3.4 GHz
Cores Single core Dual core

features

Has a NX bit Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE4a
SSE2
MMX
SSE3
SSE
3DNow!
Supports dynamic frequency scaling Yes Yes

bus

Clock speed 2,000 MHz 3,400 MHz

details

Sempron 145  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 45 nm 45 nm
Max CPUs 1 1

overclocking

Overclock popularity 9 1
Overclocked clock speed 4.05 GHz 4.02 GHz
Overclocked clock speed (Water) 4.28 GHz 4.09 GHz
PassMark (Overclocked) 1,763.8 810.1
Overclocked clock speed (Air) 4.05 GHz 4.02 GHz

power consumption

TDP 45W 65W
Annual home energy cost 10.84 $/year 15.66 $/year
Annual commercial energy cost 39.42 $/year 56.94 $/year
Performance per watt 2.06 pt/W 2.03 pt/W
Typical power consumption 36.56W 52.81W
AMD Sempron 145
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AMD Athlon II X2 270
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