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Differences What are the advantages of each

Front view of Intel Core2 Quad Q9300

Reasons to consider the
Intel Core2 Quad Q9300

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Supports trusted computing Yes vs No Somewhat common; Allows for safer, more reliable computing
Significantly better overclocked clock speed (Water) 3.61 GHz vs 2.53 GHz More than 40% better overclocked clock speed (Water)
Front view of Intel Core2 QX9300

Reasons to consider the
Intel Core2 QX9300

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Much more l2 cache 12 MB vs 6 MB 2x more l2 cache; more data can be stored in the l2 cache for quick access later
Is unlocked Yes vs No Somewhat common; An unlocked multiplier allows for easier overclocking
Much more l2 cache per core 3 MB/core vs 1.5 MB/core 2x more l2 cache per core
Much lower typical power consumption 36.56W vs 77.19W 2.1x lower typical power consumption
Much lower annual home energy cost 10.84 $/year vs 22.89 $/year 2.1x lower annual home energy cost
Much lower annual commercial energy cost 39.42 $/year vs 83.22 $/year 2.1x lower annual commercial energy cost
Newer Aug, 2008 vs Jan, 2008 Release date 7 months later

Features Key features of the Core2 Quad Q9300  vs QX9300 

clock speed

Core2 QX9300
2.53 GHz

L2 cache

overclocked clock speed (air)

Core2 Quad Q9300
3.38 GHz
Core2 QX9300
3.33 GHz

overclocked clock speed (water)

Core2 Quad Q9300
3.61 GHz
Core2 QX9300
2.53 GHz

Specifications Full list of technical specs

summary

Core2 Quad Q9300  vs
QX9300 
Clock speed 2.5 GHz 2.53 GHz
Cores Quad core Quad core
Socket type
LGA 775
478
P
Is unlocked No Yes

features

Has a NX bit Yes Yes
Supports trusted computing Yes No
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 45W
Annual home energy cost 22.89 $/year 10.84 $/year
Annual commercial energy cost 83.22 $/year 39.42 $/year
Typical power consumption 77.19W 36.56W

details

Core2 Quad Q9300  vs
QX9300 
Architecture x86-64 x86-64
Threads 4 4
L2 cache 6 MB 12 MB
L2 cache per core 1.5 MB/core 3 MB/core
Manufacture process 45 nm 45 nm
Transistor count 456,000,000 820,000,000
Max CPUs 1 1
Clock multiplier 7 9
Voltage range 0.85 - 1.36V 1.05 - 1.18V

overclocking

Overclocked clock speed 3.38 GHz 3.33 GHz
Overclocked clock speed (Water) 3.61 GHz 2.53 GHz
Overclocked clock speed (Air) 3.38 GHz 3.33 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

bus

Architecture FSB FSB
Number of links 1 1
Clock speed 1,333 MHz 1,066 MHz
Intel Core2 Quad Q9300
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Intel Core2 QX9300
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