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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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Much newer manufacturing process 45 nm vs 65 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much better performance per watt 2.06 pt/W vs 0.69 pt/W Around 3x better performance per watt
Much lower typical power consumption 36.56W vs 72.31W Around 50% lower typical power consumption
Much better overclocked clock speed (Air) 4.05 GHz vs 3.25 GHz Around 25% better overclocked clock speed (Air)
Much more l2 cache per core 1 MB/core vs 0.5 MB/core 2x more l2 cache per core
Much better overclocked clock speed (Water) 4.28 GHz vs 3.38 GHz More than 25% better overclocked clock speed (Water)
Much lower annual commercial energy cost 39.42 $/year vs 77.96 $/year Around 50% lower annual commercial energy cost
Much lower annual home energy cost 10.84 $/year vs 21.44 $/year Around 50% lower annual home energy cost
Front view of AMD Athlon 64 X2 5800+

Reasons to consider the
AMD Athlon 64 X2 5800+

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Much better PassMark score 1,536 vs 800 More than 90% better PassMark score
More cores 2 vs 1 Twice as many cores; run more applications at once
More threads 2 vs 1 Twice as many threads
Higher clock speed 3 GHz vs 2.8 GHz More than 5% higher clock speed

Benchmarks Real world tests of Sempron 145 vs Athlon 64 X2 5800+

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 64 X2 5800+
80.1 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 64 X2 5800+ 
Clock speed 2.8 GHz 3 GHz
Cores Single core Dual core
Socket type
AM3
AM2

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

details

Sempron 145  vs
Athlon 64 X2 5800+ 
Threads 1 2
L2 cache 1 MB 1 MB
L2 cache per core 1 MB/core 0.5 MB/core
Manufacture process 45 nm 65 nm
Max CPUs 1 1

overclocking

Overclocked clock speed 4.05 GHz 3.25 GHz
Overclocked clock speed (Water) 4.28 GHz 3.38 GHz
PassMark (Overclocked) 1,763.8 1,554.5
Overclocked clock speed (Air) 4.05 GHz 3.25 GHz

power consumption

TDP 45W 89W
Annual home energy cost 10.84 $/year 21.44 $/year
Annual commercial energy cost 39.42 $/year 77.96 $/year
Performance per watt 2.06 pt/W 0.69 pt/W
Typical power consumption 36.56W 72.31W
AMD Sempron 145
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AMD Athlon 64 X2 5800+
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