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Differences What are the advantages of each

Front view of Intel Core2 Duo E6600

Reasons to consider the
Intel Core2 Duo E6600

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Much more l2 cache 4 MB vs 2 MB 2x more l2 cache; more data can be stored in the l2 cache for quick access later
Much newer manufacturing process 65 nm vs 90 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much more l2 cache per core 2 MB/core vs 1 MB/core 2x more l2 cache per core
Higher clock speed 2.4 GHz vs 2.2 GHz Around 10% higher clock speed
Lower typical power consumption 52.81W vs 69.06W Around 25% lower typical power consumption
Significantly better overclocked clock speed (Air) 3.49 GHz vs 2.2 GHz Around 60% better overclocked clock speed (Air)
Better PassMark (Single core) score 1,257 vs 685 Around 85% better PassMark (Single core) score
Significantly better overclocked clock speed (Water) 3.45 GHz vs 2.2 GHz More than 55% better overclocked clock speed (Water)
Better performance per watt 1.7 pt/W vs 0.87 pt/W Around 95% better performance per watt
Newer Jul, 2006 vs May, 2005 Release date over 1 years later
Lower annual home energy cost 15.66 $/year vs 20.48 $/year Around 25% lower annual home energy cost
Lower annual commercial energy cost 56.94 $/year vs 74.46 $/year Around 25% lower annual commercial energy cost
Front view of AMD Opteron 275

Reasons to consider the
AMD Opteron 275

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Supports more CPUs in SMP configuration 2 vs 1 Twice as many CPUs in SMP configuration
Higher Maximum operating temperature 67 °C vs 60.1 °C More than 10% higher Maximum operating temperature

Benchmarks Real world tests of Core2 Duo E6600 vs Opteron 275

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

Core2 Duo E6600
102,200 MB/s
Opteron 275
60,200 MB/s

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Core2 Duo E6600  vs
Opteron 275 
Clock speed 2.4 GHz 2.2 GHz
Cores Dual core Dual core
Socket type
LGA 775
940

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 E6600  vs
Opteron 275 
Threads 2 2
L2 cache 4 MB 2 MB
L2 cache per core 2 MB/core 1 MB/core
Manufacture process 65 nm 90 nm
Max CPUs 1 2
Clock multiplier 9 11
Voltage range 0.85 - 1.5V 1.2 - UnknownV
Operating temperature Unknown - 60.1°C 0 - 67°C

overclocking

Overclocked clock speed 3.49 GHz 2.2 GHz
Overclocked clock speed (Water) 3.45 GHz 2.2 GHz
Overclocked clock speed (Air) 3.49 GHz 2.2 GHz

power consumption

TDP 65W 85W
Annual home energy cost 15.66 $/year 20.48 $/year
Annual commercial energy cost 56.94 $/year 74.46 $/year
Performance per watt 1.7 pt/W 0.87 pt/W
Typical power consumption 52.81W 69.06W
Intel Core2 Duo E6600
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AMD Opteron 275
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