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Intel Core2 Quad Q9550

Front view of Intel Core2 Quad Q9550
Front view of Intel Core2 Duo E8600

Intel Core2 Duo E8600

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Differences What are the advantages of each

Front view of Intel Core2 Quad Q9550

Reasons to consider the
Intel Core2 Quad Q9550

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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 1.51 pt/W vs 1.1 pt/W More than 35% 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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Significantly higher clock speed 3.33 GHz vs 2.83 GHz Around 20% higher clock speed
Much better overclocked clock speed (Air) 4.61 GHz vs 3.99 GHz More than 15% better overclocked clock speed (Air)
Higher Maximum operating temperature 72.4 °C vs 71.4 °C Almost the same
Significantly better overclocked clock speed (Water) 4.6 GHz vs 4.03 GHz Around 15% better overclocked clock speed (Water)

Benchmarks Real world tests of Core2 Quad Q9550 vs Duo E8600

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Core2 Quad Q9550
5,498
Core2 Duo E8600
3,344

GeekBench 3 (Single core) Data courtesy Primate Labs

Core2 Quad Q9550
1,604
Core2 Duo E8600
1,844

GeekBench 3 (AES single core) Data courtesy Primate Labs

Core2 Quad Q9550
121,500 MB/s
Core2 Duo E8600
136,900 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

Core2 Quad Q9550
5,132
Core2 Duo E8600
3,168

GeekBench (64-bit) Data courtesy Primate Labs

Core2 Quad Q9550
5,686
Core2 Duo E8600
3,535

GeekBench

Core2 Quad Q9550
7,065
Core2 Duo E8600
5,492

PassMark Data courtesy Passmark

Core2 Quad Q9550
4,002
Core2 Duo E8600
2,415

PassMark (Single Core)

Core2 Quad Q9550
1,199
Core2 Duo E8600
1,373

Specifications Full list of technical specs

summary

 Core2 Quad Q9550  vs
Duo E8600 
Clock speed 2.83 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
SSE4
SSE3
EM64T
SSE
SSE4.1
Supplemental SSE3
Supports dynamic frequency scaling Yes Yes

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 1.51 pt/W 1.1 pt/W
Typical power consumption 77.19W 120.65W

bus
Architecture FSB FSB
Number of links 1 1
Clock speed 1,333 MHz 1,333 MHz

details

 Core2 Quad Q9550  vs
Duo E8600 
Architecture x86-64 x86-64
Threads 4 2
L2 cache 12 MB 6 MB
L2 cache per core 3 MB/core 3 MB/core
Manufacture process 45 nm 45 nm
Transistor count 820,000,000 410,000,000
Max CPUs 1 1
Clock multiplier 8 10
Voltage range 0.85 - 1.36V 0.85 - 1.36V
Operating temperature Unknown - 71.4°C Unknown - 72.4°C

overclocking
Overclock popularity 127 9
Overclocked clock speed 3.99 GHz 4.61 GHz
Overclocked clock speed (Water) 4.03 GHz 4.6 GHz
Overclocked clock speed (Air) 3.99 GHz 4.61 GHz

integrated graphics
GPU None None
Label N/A N/A
Latest DirectX N/A N/A
Number of displays supported N/A N/A
GPU clock speed N/A N/A
Turbo clock speed N/A N/A
3DMark06 N/A N/A
Intel Core2 Quad Q9550
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Intel Core2 Duo E8600
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