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Differences What are the advantages of each

Front view of Intel Core2 Duo E6300

Reasons to consider the
Intel Core2 Duo E6300

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Much newer manufacturing process 65 nm vs 130 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Significantly more l2 cache 2 MB vs 1 MB 2x more l2 cache; more data can be stored in the l2 cache for quick access later
Lower typical power consumption 52.81W vs 69.31W Around 25% lower typical power consumption
More cores 2 vs 1 Twice as many cores; run more applications at once
Newer Jul, 2006 vs May, 2004 Release date over 2 years later
Much better overclocked clock speed (Water) 3.45 GHz vs 1.8 GHz More than 90% better overclocked clock speed (Water)
Better performance per watt 1.18 pt/W vs 0.23 pt/W Around 5.2x better performance per watt
Slightly better overclocked clock speed (Air) 3.19 GHz vs 3.02 GHz More than 5% better overclocked clock speed (Air)
Lower annual commercial energy cost 56.94 $/year vs 74.72 $/year Around 25% lower annual commercial energy cost
Lower annual home energy cost 15.66 $/year vs 20.55 $/year Around 25% lower annual home energy cost
Front view of AMD Opteron 248

Reasons to consider the
AMD Opteron 248

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Higher clock speed 2.2 GHz vs 1.86 GHz Around 20% higher clock speed
Supports more CPUs in SMP configuration 2 vs 1 Twice as many CPUs in SMP configuration
Higher Maximum operating temperature 71 °C vs 61.4 °C More than 15% higher Maximum operating temperature

Benchmarks Real world tests of Core2 Duo E6300 vs Opteron 248

PassMark Data courtesy Passmark

Specifications Full list of technical specs

summary

Core2 Duo E6300  vs
Opteron 248 
Clock speed 1.86 GHz 2.2 GHz
Cores Dual core Single 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 E6300  vs
Opteron 248 
Threads 2 1
L2 cache 2 MB 1 MB
L2 cache per core 1 MB/core 1 MB/core
Manufacture process 65 nm 130 nm
Max CPUs 1 2
Clock multiplier 7 11
Voltage range 0.85 - 1.5V 1.3 - UnknownV
Operating temperature Unknown - 61.4°C 0 - 71°C

overclocking

Overclocked clock speed 3.19 GHz 3.02 GHz
Overclocked clock speed (Water) 3.45 GHz 1.8 GHz
Overclocked clock speed (Air) 3.19 GHz 3.02 GHz

power consumption

TDP 65W 85.3W
Annual home energy cost 15.66 $/year 20.55 $/year
Annual commercial energy cost 56.94 $/year 74.72 $/year
Performance per watt 1.18 pt/W 0.23 pt/W
Typical power consumption 52.81W 69.31W
Intel Core2 Duo E6300
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AMD Opteron 248
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