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Differences What are the advantages of each

Front view of Intel Core i7 3960X

Reasons to consider the
Intel Core i7 3960X

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Much higher clock speed 3.3 GHz vs 0.8 GHz Around 4.2x higher clock speed
Much more l2 cache 2 MB vs 0.5 MB 4x more l2 cache; more data can be stored in the l2 cache for quick access later
More advanced architecture x86-64 vs x86 A 64-bit architecture allows more RAM to be installed and accessed by the processor
Much newer manufacturing process 32 nm vs 45 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Has virtualization support Yes vs No Somewhat common; Boosts performance of virtual machines
Much better overclocked clock speed (Air) 4.76 GHz vs 1.71 GHz More than 2.8x better overclocked clock speed (Air)
More cores 6 vs 1 5 more cores; run more applications at once
More threads 12 vs 2 10 more threads
Much better overclocked clock speed (Water) 4.58 GHz vs 0.8 GHz Around 5.8x better overclocked clock speed (Water)
Newer Nov, 2011 vs Apr, 2008 Release date over 3 years later
Front view of Intel Atom Z500

Reasons to consider the
Intel Atom Z500

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Much lower typical power consumption 0.53W vs 176.72W 334.6x lower typical power consumption
Much lower annual home energy cost 0.16 $/year vs 56.39 $/year 360.1x lower annual home energy cost
Much lower annual commercial energy cost 0.57 $/year vs 184.84 $/year 324.6x lower annual commercial energy cost
More l2 cache per core 0.5 MB/core vs 0.33 MB/core More than 50% more l2 cache per core

Features Key features of the Core i7 3960X  vs Atom Z500 

clock speed

Core i7 3960X
3.3 GHz
Atom Z500
0.8 GHz

L2 cache

Atom Z500
0.5 MB

overclocked clock speed (air)

Core i7 3960X
4.76 GHz
Atom Z500
1.71 GHz

overclocked clock speed (water)

Core i7 3960X
4.58 GHz
Atom Z500
0.8 GHz

TDP

Specifications Full list of technical specs

summary

Core i7 3960X  vs
Atom Z500 
Clock speed 3.3 GHz 0.8 GHz
Cores Hexa core Single core
Socket type
LGA 2011
441

features

Has a NX bit Yes Yes
Supports trusted computing No No
Has virtualization support Yes No
Instruction set extensions
SSE2
MMX
SSE4
AVX
SSE3
SSE
SSE4.1
SSE4.2
Supplemental SSE3
AES
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 130W 0.65W
Annual home energy cost 56.39 $/year 0.16 $/year
Annual commercial energy cost 184.84 $/year 0.57 $/year
Typical power consumption 176.72W 0.53W

bus

Architecture DMI 2.0 FSB
Number of links 1 1

details

Core i7 3960X  vs
Atom Z500 
Architecture x86-64 x86
Threads 12 2
L2 cache 2 MB 0.5 MB
L2 cache per core 0.33 MB/core 0.5 MB/core
Manufacture process 32 nm 45 nm
Transistor count 2,270,000,000 47,000,000
Max CPUs 1 1
Clock multiplier 33 8
Voltage range 0.6 - 1.35V 0.8 - 1.1V

overclocking

Overclocked clock speed 4.76 GHz 1.71 GHz
Overclocked clock speed (Water) 4.58 GHz 0.8 GHz
Overclocked clock speed (Air) 4.76 GHz 1.71 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 Core i7 3960X
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Intel Atom Z500
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