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Differences What are the advantages of each

Front view of Intel Core2 QX6850

Reasons to consider the
Intel Core2 QX6850

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Is unlocked Yes vs No Somewhat common; An unlocked multiplier allows for easier overclocking
Front view of AMD Phenom X3 B77

Reasons to consider the
AMD Phenom X3 B77

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CPUBoss is not aware of any important advantages of the AMD Phenom X3 B77 vs the Intel Core2 QX6850.

Features Key features of the Core2 QX6850  vs Phenom X3 B77 

clock speed

Core2 QX6850
3 GHz
Phenom X3 B77
3.2 GHz

L2 cache

overclocked clock speed (air)

Core2 QX6850
4.02 GHz
Phenom X3 B77
3.2 GHz

overclocked clock speed (water)

Core2 QX6850
3.86 GHz
Phenom X3 B77
4.4 GHz

Specifications Full list of technical specs

summary

Core2 QX6850  vs
Phenom X3 B77 
Clock speed 3 GHz 3.2 GHz
Cores Quad core Tri core
Is unlocked Yes No

features

Has a NX bit Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE4a
SSE2
MMX
SSE3
SSE
3DNow!
Supplemental SSE3
Supports dynamic frequency scaling Yes Yes

bus

Clock speed 1,333 MHz 2,000 MHz

details

Core2 QX6850  vs
Phenom X3 B77 
Threads 4 3
L2 cache 8 MB 1.5 MB
L2 cache per core 2 MB/core 0.5 MB/core
Manufacture process 65 nm 45 nm
Max CPUs 1 1

overclocking

Overclocked clock speed 4.02 GHz 3.2 GHz
Overclocked clock speed (Water) 3.86 GHz 4.4 GHz
Overclocked clock speed (Air) 4.02 GHz 3.2 GHz

power consumption

TDP 130W 95W
Annual home energy cost 31.32 $/year 22.89 $/year
Annual commercial energy cost 113.88 $/year 83.22 $/year
Typical power consumption 105.63W 77.19W
Intel Core2 QX6850
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AMD Phenom X3 B77
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