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Differences What are the advantages of each

Front view of Intel Pentium 755

Reasons to consider the
Intel Pentium 755

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Much lower typical power consumption 6.09W vs 101.56W 16.7x lower typical power consumption
Much more l2 cache per core 2 MB/core vs 0.5 MB/core 4x more l2 cache per core
Much lower annual home energy cost 1.81 $/year vs 30.11 $/year 16.7x lower annual home energy cost
Much lower annual commercial energy cost 6.57 $/year vs 109.5 $/year 16.7x lower annual commercial energy cost
Front view of AMD Phenom II X4 955

Reasons to consider the
AMD Phenom II X4 955

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Much newer manufacturing process 45 nm vs 90 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Significantly higher clock speed 3.2 GHz vs 2 GHz More than 60% higher clock speed
More advanced architecture x86-64 vs x86 A 64-bit architecture allows more RAM to be installed and accessed by the processor
Has a NX bit Yes vs No Somewhat common; Prevents a common class of security exploits
Has virtualization support Yes vs No Somewhat common; Boosts performance of virtual machines
Much better overclocked clock speed (Air) 3.99 GHz vs 2.35 GHz More than 70% better overclocked clock speed (Air)
More cores 4 vs 1 3 more cores; run more applications at once
Newer Nov, 2009 vs May, 2004 Release date over 5 years later
More threads 4 vs 1 3 more threads
Much better overclocked clock speed (Water) 4.14 GHz vs 2 GHz More than 2x better overclocked clock speed (Water)

Features Key features of the Pentium 755  vs Phenom II X4 955 

clock speed

L2 cache

overclocked clock speed (air)

Pentium 755
2.35 GHz
Phenom II X4 955
3.99 GHz

overclocked clock speed (water)

Pentium 755
2 GHz
Phenom II X4 955
4.14 GHz

Specifications Full list of technical specs

summary

Pentium 755  vs
Phenom II X4 955 
Clock speed 2 GHz 3.2 GHz
Cores Single core Quad core
Socket type
479
AM3

features

Has a NX bit No Yes
Has virtualization support No Yes
Instruction set extensions
SSE4a
SSE2
MMX
SSE3
SSE
3DNow!
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 7.5W 125W
Annual home energy cost 1.81 $/year 30.11 $/year
Annual commercial energy cost 6.57 $/year 109.5 $/year
Typical power consumption 6.09W 101.56W

details

Pentium 755  vs
Phenom II X4 955 
Architecture x86 x86-64
Threads 1 4
L2 cache 2 MB 2 MB
L2 cache per core 2 MB/core 0.5 MB/core
Manufacture process 90 nm 45 nm
Max CPUs 1 1
Voltage range 0.99 - 1.34V 0.88 - 1.5V

overclocking

Overclocked clock speed 2.35 GHz 3.99 GHz
Overclocked clock speed (Water) 2 GHz 4.14 GHz
Overclocked clock speed (Air) 2.35 GHz 3.99 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

Clock speed 400 MHz 2,000 MHz
Intel Pentium 755
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AMD Phenom II X4 955
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