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Differences What are the advantages of each

Front view of AMD Athlon X2 5000B

Reasons to consider the
AMD Athlon X2 5000B

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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
Much better performance per watt 1.22 pt/W vs 0.61 pt/W Around 2x better performance per watt
Significantly lower typical power consumption 52.81W vs 72.31W More than 25% lower typical power consumption
Better overclocked clock speed (Air) 3.23 GHz vs 3.13 GHz Around 5% better overclocked clock speed (Air)
Significantly lower annual home energy cost 15.66 $/year vs 21.44 $/year More than 25% lower annual home energy cost
Significantly lower annual commercial energy cost 56.94 $/year vs 77.96 $/year More than 25% lower annual commercial energy cost
Newer Apr, 2008 vs Dec, 2006 Release date over 1 years later
Front view of AMD Athlon 64 X2 5000+

Reasons to consider the
AMD Athlon 64 X2 5000+

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Is unlocked Yes vs No Somewhat common; An unlocked multiplier allows for easier overclocking
Much better PassMark score 1,497 vs 1,304 Around 15% better PassMark score
Higher Maximum operating temperature 70 °C vs 68 °C Around 5% higher Maximum operating temperature
Much better overclocked clock speed (Water) 3.39 GHz vs 2.6 GHz More than 30% better overclocked clock speed (Water)

Benchmarks Real world tests of Athlon X2 5000B vs 64 X2 5000+

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 X2 5000B
71,400 MB/s
Athlon 64 X2 5000+
64.85 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

GeekBench

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Athlon X2 5000B  vs
64 X2 5000+ 
Clock speed 2.6 GHz 2.6 GHz
Cores Dual core Dual core
Socket type
AM2
Is unlocked No Yes

features

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

details

Athlon X2 5000B  vs
64 X2 5000+ 
Threads 2 2
L2 cache 1 MB 1 MB
L2 cache per core 0.5 MB/core 0.5 MB/core
Manufacture process 65 nm 90 nm
Max CPUs 1 1
Operating temperature Unknown - 68°C Unknown - 70°C

overclocking

Overclocked clock speed 3.23 GHz 3.13 GHz
Overclocked clock speed (Water) 2.6 GHz 3.39 GHz
Overclocked clock speed (Air) 3.23 GHz 3.13 GHz

power consumption

TDP 65W 89W
Annual home energy cost 15.66 $/year 21.44 $/year
Annual commercial energy cost 56.94 $/year 77.96 $/year
Performance per watt 1.22 pt/W 0.61 pt/W
Typical power consumption 52.81W 72.31W
AMD Athlon X2 5000B
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AMD Athlon 64 X2 5000+
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