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Differences What are the advantages of each

Front view of AMD Opteron 144

Reasons to consider the
AMD Opteron 144

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Much more l2 cache per core 1 MB/core vs 0.5 MB/core 2x more l2 cache per core
Significantly higher Maximum operating temperature 71 °C vs 55 °C Around 30% higher Maximum operating temperature
Better overclocked clock speed (Air) 2.95 GHz vs 2.7 GHz Around 10% better overclocked clock speed (Air)
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
Higher clock speed 2 GHz vs 1.8 GHz More than 10% higher clock speed
Newer May, 2006 vs Sep, 2003 Release date over 2 years later
More cores 2 vs 1 Twice as many cores; run more applications at once
Significantly better overclocked clock speed (Water) 2.75 GHz vs 1.8 GHz Around 55% better overclocked clock speed (Water)

Benchmarks Real world tests of Opteron 144 vs Athlon X2 3800+

GeekBench (32-bit) Data courtesy Primate Labs

GeekBench

PassMark Data courtesy Passmark

Specifications Full list of technical specs

summary

Opteron 144  vs
Athlon X2 3800+ 
Clock speed 1.8 GHz 2 GHz
Cores Single core Dual core
Socket type
939
940
AM2

features

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

details

Opteron 144  vs
Athlon X2 3800+ 
Threads 1 2
L2 cache 1 MB 1 MB
L2 cache per core 1 MB/core 0.5 MB/core
Manufacture process 130 nm 90 nm
Max CPUs 1 1
Voltage range 1.3 - UnknownV 1.2 - 1.25V
Operating temperature 0 - 71°C Unknown - 55°C

overclocking

Overclocked clock speed 2.95 GHz 2.7 GHz
Overclocked clock speed (Water) 1.8 GHz 2.75 GHz
Overclocked clock speed (Air) 2.95 GHz 2.7 GHz

power consumption

TDP 67W 65W
Annual home energy cost 16.14 $/year 15.66 $/year
Annual commercial energy cost 58.69 $/year 56.94 $/year
Performance per watt 0.31 pt/W 0.66 pt/W
Typical power consumption 54.44W 52.81W
AMD Opteron 144
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AMD Athlon X2 3800+
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