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Differences What are the advantages of each

Front view of Intel Core2 Quad Q9705

Reasons to consider the
Intel Core2 Quad Q9705

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More cores 4 vs 2 Twice as many cores; run more applications at once
More threads 4 vs 2 Twice as many threads
Much better performance per watt 1.7 pt/W vs 1.1 pt/W Around 55% better performance per watt
Much lower typical power consumption 77.19W vs 120.65W More than 35% lower typical power consumption
Much lower annual home energy cost 22.89 $/year vs 47.3 $/year 2.1x lower annual home energy cost
Much lower annual commercial energy cost 83.22 $/year vs 113.62 $/year More than 25% lower annual commercial energy cost
Front view of Intel Core2 Duo E8600

Reasons to consider the
Intel Core2 Duo E8600

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Much better overclocked clock speed (Air) 4.61 GHz vs 3.17 GHz More than 45% better overclocked clock speed (Air)
Higher clock speed 3.33 GHz vs 3.17 GHz More than 5% higher clock speed
Much better overclocked clock speed (Water) 4.6 GHz vs 3.17 GHz More than 45% better overclocked clock speed (Water)

Benchmarks Real world tests of Core2 Quad Q9705 vs Duo E8600

PassMark Data courtesy Passmark

Specifications Full list of technical specs

summary

Core2 Quad Q9705  vs
Duo E8600 
Clock speed 3.17 GHz 3.33 GHz
Cores Quad core Dual core
Socket type
LGA 775

features

Has a NX bit Yes Yes
Supports trusted computing Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE2
MMX
SSE3
SSE
SSE4.1
Supplemental SSE3
Supports dynamic frequency scaling Yes Yes

bus

Clock speed 1,333 MHz 1,333 MHz

details

Core2 Quad Q9705  vs
Duo E8600 
Threads 4 2
L2 cache 6 MB 6 MB
L2 cache per core 1.5 MB/core 3 MB/core
Manufacture process 45 nm 45 nm
Max CPUs 1 1

overclocking

Overclocked clock speed 3.17 GHz 4.61 GHz
Overclocked clock speed (Water) 3.17 GHz 4.6 GHz
Overclocked clock speed (Air) 3.17 GHz 4.61 GHz

power consumption

TDP 95W 65W
Annual home energy cost 22.89 $/year 47.3 $/year
Annual commercial energy cost 83.22 $/year 113.62 $/year
Performance per watt 1.7 pt/W 1.1 pt/W
Typical power consumption 77.19W 120.65W
Intel Core2 Quad Q9705
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Intel Core2 Duo E8600
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