Intel Core2 Quad Q9650 vs Duo E8600

older Released August, 2008

Reasons to buy the Intel Core2 Quad Q9650

	More cores 4		More threads 4
	Much better performance per watt 1.47 pt/W		Much lower typical power consumption 77.19W

older Released July, 2008

Reasons to buy the Duo E8600

	Higher clock speed 3.33 GHz		Much better overclocked clock speed (Air) 4.61 GHz
	Higher Maximum operating temperature 72.4 °C		Better overclocked clock speed (Water) 4.6 GHz

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Reasons to consider the
Intel Core2 Quad Q9650

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More cores

Twice as many cores; run more applications at once

More threads

Twice as many threads

Much better performance per watt

1.47 pt/W

1.1 pt/W

Around 35% better performance per watt

Much lower typical power consumption

77.19W

120.65W

More than 35% lower typical power consumption

Much lower annual home energy cost

22.89 $/year

47.3 $/year

2.1x lower annual home energy cost

Much lower annual commercial energy cost

83.22 $/year

113.62 $/year

More than 25% lower annual commercial energy cost

Reasons to consider the
Intel Core2 Duo E8600

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Higher clock speed

3.33 GHz

3 GHz

More than 10% higher clock speed

Much better overclocked clock speed (Air)

4.61 GHz

4.15 GHz

More than 10% better overclocked clock speed (Air)

Higher Maximum operating temperature

72.4 °C

71.4 °C

Almost the same

Better overclocked clock speed (Water)

4.6 GHz

4.25 GHz

Around 10% better overclocked clock speed (Water)

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Core2 Quad Q9650

5,792

Core2 Duo E8600

3,344

GeekBench 3 (Single core) Data courtesy Primate Labs

Core2 Quad Q9650

1,692

Core2 Duo E8600

1,844

GeekBench 3 (AES single core) Data courtesy Primate Labs

Core2 Quad Q9650

128,200 MB/s

Core2 Duo E8600

136,900 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

Core2 Quad Q9650

5,442

Core2 Duo E8600

3,168

GeekBench (64-bit) Data courtesy Primate Labs

Core2 Quad Q9650

5,901

Core2 Duo E8600

3,535

GeekBench

Core2 Quad Q9650

7,010

Core2 Duo E8600

5,492

PassMark Data courtesy Passmark

Core2 Quad Q9650

4,222

Core2 Duo E8600

2,415

PassMark (Single Core)

Core2 Quad Q9650

1,267

Core2 Duo E8600

1,373

summary	Core2 Quad Q9650	Duo E8600
Clock speed	3 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
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	1.47 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 Q9650	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	9	10
Voltage range	0.85 - 1.36V	0.85 - 1.36V
Operating temperature	Unknown - 71.4°C	Unknown - 72.4°C
overclocking
Overclocked clock speed	4.15 GHz	4.61 GHz
Overclocked clock speed (Water)	4.25 GHz	4.6 GHz
Overclocked clock speed (Air)	4.15 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 Q9650

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Intel Core2 Duo E8600

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Comments

Showing 2 comments.

Beltrami Paolo (07:23 PM, April 28, 2017)

Must I consider the periods- Architecture 775 was very special. As it has given much to today's architecture. Ex: Intel Core i7-7700K 4.2GHz 8MB Cache. Today, many things have changed the "nanometers" for example. At that exact time of 775 I think the difference was applicable for the game dual core es: 3000 mhz / 2 for multi multi thread work quad core es: 3000 / 4. The total amount of mhz should be divided by unbroken core . For the multi thread you need a few expects see photoshop and video editing applications. However, towards the end of the 775 era the q9650 was a good compromise. Even though I would have preferred the E8600 .... Without overclocking

Chance Morgan (06:05 AM, July 24, 2016)

Can anyone here use a plain language to tell me what the real difference between the two? when on what condition we use single core? and on what condition the computer use full two cores, or full 4 cores? Thank you.

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Intel Core2 Quad Q9650 vs Duo E8600