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Differences What are the advantages of each

Front view of AMD Athlon X2 3800+

Reasons to consider the
AMD Athlon X2 3800+

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Much newer manufacturing process 90 nm vs 130 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
More cores 2 vs 1 Twice as many cores; run more applications at once
More threads 2 vs 1 Twice as many threads
Significantly lower typical power consumption 52.81W vs 72.31W More than 25% lower typical power consumption
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
Front view of AMD Athlon 64 3200+

Reasons to consider the
AMD Athlon 64 3200+

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Much higher Maximum operating temperature 70 °C vs 55 °C More than 25% higher Maximum operating temperature
Much more l2 cache per core 1 MB/core vs 0.5 MB/core 2x more l2 cache per core
Better overclocked clock speed (Water) 2.87 GHz vs 2.75 GHz Around 5% better overclocked clock speed (Water)

Benchmarks Real world tests of Athlon X2 3800+ vs 64 3200+

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 3800+
64.55 MB/s
Athlon 64 3200+
52.6 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

GeekBench

x264 HD 4.0

Athlon X2 3800+
8.76 fps
Athlon 64 3200+
8.98 fps

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Athlon X2 3800+  vs
64 3200+ 
Clock speed 2 GHz 2 GHz
Cores Dual core Single core
Socket type
AM2
939
754

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 3800+  vs
64 3200+ 
Threads 2 1
L2 cache 1 MB 1 MB
L2 cache per core 0.5 MB/core 1 MB/core
Manufacture process 90 nm 130 nm
Max CPUs 1 1
Operating temperature Unknown - 55°C Unknown - 70°C

overclocking

Overclocked clock speed 2.7 GHz 2.69 GHz
Overclocked clock speed (Water) 2.75 GHz 2.87 GHz
PassMark (Overclocked) 1,578.7 942.2
Overclocked clock speed (Air) 2.7 GHz 2.69 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 0.66 pt/W 0.34 pt/W
Typical power consumption 52.81W 72.31W
AMD Athlon X2 3800+
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AMD Athlon 64 3200+
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