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Differences What are the advantages of each

Front view of AMD Sempron 3400+

Reasons to consider the
AMD Sempron 3400+

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Significantly lower typical power consumption 50.38W vs 72.31W More than 30% lower typical power consumption
Significantly lower annual home energy cost 14.94 $/year vs 21.44 $/year More than 30% lower annual home energy cost
Significantly lower annual commercial energy cost 54.31 $/year vs 77.96 $/year More than 30% lower annual commercial energy cost
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
Significantly higher clock speed 2.6 GHz vs 1.8 GHz Around 45% higher clock speed
Significantly more l2 cache 1 MB vs 0 MB Compared to all cpus, 1 MB l2 cache is just OK
Has virtualization support Yes vs No Somewhat common; Boosts performance of virtual machines
Much more l2 cache per core 0.5 MB/core vs 0 MB/core Compared to all cpus, 0.5 MB/core l2 cache per core is just OK
Higher Maximum operating temperature 70 °C vs 55 °C More than 25% higher Maximum operating temperature
Better overclocked clock speed (Air) 3.13 GHz vs 2.44 GHz Around 30% better overclocked clock speed (Air)
Better geekbench 3 Multi-Core score 1,767.5 vs 770 More than 2.2x better geekbench 3 Multi-Core score
Better PassMark (Single core) score 779 vs 522 Around 50% better PassMark (Single core) score
More cores 2 vs 1 Twice as many cores; run more applications at once
Much better overclocked clock speed (Water) 3.39 GHz vs 2 GHz Around 70% better overclocked clock speed (Water)
Newer Dec, 2006 vs May, 2006 Release date 6 months later

Benchmarks Real world tests of Sempron 3400+ vs Athlon 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

Sempron 3400+
48.8 MB/s
Athlon 64 X2 5000+
64.85 MB/s

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Sempron 3400+  vs
Athlon 64 X2 5000+ 
Clock speed 1.8 GHz 2.6 GHz
Cores Single core Dual core
Socket type
AM2
754
939
Is unlocked No Yes

features

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

details

Sempron 3400+  vs
Athlon 64 X2 5000+ 
Threads 1 2
L2 cache 0 MB 1 MB
L2 cache per core 0 MB/core 0.5 MB/core
Manufacture process 90 nm 90 nm
Max CPUs 1 1
Operating temperature Unknown - 55°C Unknown - 70°C

overclocking

Overclocked clock speed 2.44 GHz 3.13 GHz
Overclocked clock speed (Water) 2 GHz 3.39 GHz
PassMark (Overclocked) 1,043.3 1,518.5
Overclocked clock speed (Air) 2.44 GHz 3.13 GHz

power consumption

TDP 62W 89W
Annual home energy cost 14.94 $/year 21.44 $/year
Annual commercial energy cost 54.31 $/year 77.96 $/year
Performance per watt 0.5 pt/W 0.61 pt/W
Typical power consumption 50.38W 72.31W
AMD Sempron 3400+
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AMD Athlon 64 X2 5000+
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