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Differences What are the advantages of each

Front view of Intel Core2 Duo E4400

Reasons to consider the
Intel Core2 Duo E4400

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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 lower typical power consumption 52.81W vs 89.38W More than 40% lower typical power consumption
Newer Apr, 2007 vs Aug, 2005 Release date over 1 years later
Much lower annual home energy cost 15.66 $/year vs 26.5 $/year More than 40% lower annual home energy cost
Much lower annual commercial energy cost 56.94 $/year vs 96.36 $/year More than 40% lower annual commercial energy cost
Much better overclocked clock speed (Water) 3.53 GHz vs 2 GHz More than 75% better overclocked clock speed (Water)
Better overclocked clock speed (Air) 3.16 GHz vs 2.91 GHz Around 10% better overclocked clock speed (Air)
Better performance per watt 1.25 pt/W vs 0.52 pt/W Around 2.5x better performance per watt
Front view of AMD Opteron 170

Reasons to consider the
AMD Opteron 170

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Slightly higher Maximum operating temperature 65 °C vs 61.4 °C More than 5% higher Maximum operating temperature

Benchmarks Real world tests of Core2 Duo E4400 vs Opteron 170

GeekBench (32-bit) Data courtesy Primate Labs

GeekBench

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Core2 Duo E4400  vs
Opteron 170 
Clock speed 2 GHz 2 GHz
Cores Dual core Dual core
Socket type
LGA 775
939

features

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

details

Core2 Duo E4400  vs
Opteron 170 
Threads 2 2
L2 cache 2 MB 2 MB
L2 cache per core 1 MB/core 1 MB/core
Manufacture process 65 nm 90 nm
Max CPUs 1 1
Clock multiplier 10 10
Voltage range 0.85 - 1.5V 1.3 - UnknownV
Operating temperature Unknown - 61.4°C 0 - 65°C

overclocking

Overclocked clock speed 3.16 GHz 2.91 GHz
Overclocked clock speed (Water) 3.53 GHz 2 GHz
Overclocked clock speed (Air) 3.16 GHz 2.91 GHz

power consumption

TDP 65W 110W
Annual home energy cost 15.66 $/year 26.5 $/year
Annual commercial energy cost 56.94 $/year 96.36 $/year
Performance per watt 1.25 pt/W 0.52 pt/W
Typical power consumption 52.81W 89.38W
Intel Core2 Duo E4400
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AMD Opteron 170
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