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Differences What are the advantages of each

Front view of Intel Core2 Quad Q9650

Reasons to consider the
Intel Core2 Quad Q9650

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Much more l2 cache 12 MB vs 1 MB 12x more l2 cache; more data can be stored in the l2 cache for quick access later
Much newer manufacturing process 45 nm vs 130 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Higher clock speed 3 GHz vs 2.4 GHz More than 25% higher clock speed
Much more l2 cache per core 3 MB/core vs 1 MB/core 3x more l2 cache per core
Much better overclocked clock speed (Air) 4.15 GHz vs 2.73 GHz More than 50% better overclocked clock speed (Air)
More cores 4 vs 1 3 more cores; run more applications at once
Newer Aug, 2008 vs May, 2004 Release date over 4 years later
More threads 4 vs 1 3 more threads
Much better overclocked clock speed (Water) 4.25 GHz vs 2.4 GHz More than 75% better overclocked clock speed (Water)
Front view of AMD Opteron 850

Reasons to consider the
AMD Opteron 850

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Supports more CPUs in SMP configuration 8 vs 1 7 supports more CPUs in SMP configuration
Lower typical power consumption 69.31W vs 77.19W More than 10% lower typical power consumption
Lower annual home energy cost 20.55 $/year vs 22.89 $/year More than 10% lower annual home energy cost
Lower annual commercial energy cost 74.72 $/year vs 83.22 $/year More than 10% lower annual commercial energy cost

Features Key features of the Core2 Quad Q9650  vs Opteron 850 

clock speed

L2 cache

overclocked clock speed (air)

Core2 Quad Q9650
4.15 GHz
Opteron 850
2.73 GHz

overclocked clock speed (water)

Core2 Quad Q9650
4.25 GHz
Opteron 850
2.4 GHz

Specifications Full list of technical specs

summary

Core2 Quad Q9650  vs
Opteron 850 
Clock speed 3 GHz 2.4 GHz
Cores Quad core Single core
Socket type
LGA 775
940

features

Has a NX bit Yes Yes
Instruction set extensions
SSE2
MMX
SSE3
SSE
SSE4.1
3DNow!
Supplemental SSE3
Supports dynamic frequency scaling Yes Yes

details

Core2 Quad Q9650  vs
Opteron 850 
Threads 4 1
L2 cache 12 MB 1 MB
L2 cache per core 3 MB/core 1 MB/core
Manufacture process 45 nm 130 nm
Max CPUs 1 8
Clock multiplier 9 12
Voltage range 0.85 - 1.36V 1.3 - UnknownV
Operating temperature Unknown - 71.4°C 0 - 71°C

overclocking

Overclocked clock speed 4.15 GHz 2.73 GHz
Overclocked clock speed (Water) 4.25 GHz 2.4 GHz
PassMark (Overclocked) 1,473.2 950.1
Overclocked clock speed (Air) 4.15 GHz 2.73 GHz

power consumption

TDP 95W 85.3W
Annual home energy cost 22.89 $/year 20.55 $/year
Annual commercial energy cost 83.22 $/year 74.72 $/year
Typical power consumption 77.19W 69.31W
Intel Core2 Quad Q9650
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AMD Opteron 850
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