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Differences What are the advantages of each

Front view of AMD Athlon II X2 250u

Reasons to consider the
AMD Athlon II X2 250u

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Much lower typical power consumption 20.31W vs 36.56W Around 45% lower typical power consumption
More cores 2 vs 1 Twice as many cores; run more applications at once
More threads 2 vs 1 Twice as many threads
Much higher Maximum operating temperature 81 °C vs 65 °C Around 25% higher Maximum operating temperature
Much lower annual home energy cost 6.02 $/year vs 10.84 $/year Around 45% lower annual home energy cost
Much lower annual commercial energy cost 21.9 $/year vs 39.42 $/year Around 45% lower annual commercial energy cost
Front view of AMD Athlon 64 LE-1640

Reasons to consider the
AMD Athlon 64 LE-1640

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Much better overclocked clock speed (Air) 3.24 GHz vs 2.54 GHz Around 30% better overclocked clock speed (Air)
Has virtualization support Yes vs No Somewhat common; Boosts performance of virtual machines
Much better overclocked clock speed (Water) 3.79 GHz vs 1.6 GHz More than 2.2x better overclocked clock speed (Water)

Benchmarks Real world tests of Athlon II X2 250u vs 64 LE-1640

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

Athlon II X2 250u
63,700 MB/s

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Athlon II X2 250u  vs
64 LE-1640 
Clock speed 1.6 GHz 2.7 GHz
Cores Dual core Single core
Socket type
AM3
AM2

features

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

details

Athlon II X2 250u  vs
64 LE-1640 
Threads 2 1
L2 cache 2 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
Operating temperature Unknown - 81°C Unknown - 65°C

overclocking

Overclocked clock speed 2.54 GHz 3.24 GHz
Overclocked clock speed (Water) 1.6 GHz 3.79 GHz
PassMark (Overclocked) 1,670.6 1,121.9
Overclocked clock speed (Air) 2.54 GHz 3.24 GHz

power consumption

TDP 25W 45W
Annual home energy cost 6.02 $/year 10.84 $/year
Annual commercial energy cost 21.9 $/year 39.42 $/year
Performance per watt 2.52 pt/W 0.93 pt/W
Typical power consumption 20.31W 36.56W
AMD Athlon II X2 250u
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AMD Athlon 64 LE-1640
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