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Differences What are the advantages of each

Front view of Intel Core i7 4770K

Reasons to consider the
Intel Core i7 4770K

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Much higher clock speed 3.5 GHz vs 0.8 GHz Around 4.5x higher clock speed
Much newer manufacturing process 22 nm vs 45 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
More advanced architecture x86-64 vs x86 A 64-bit architecture allows more RAM to be installed and accessed by the processor
Has a built-in GPU Yes vs No Somewhat common; A separate graphics adapter is not required
More l2 cache 1 MB vs 0.5 MB 2x more l2 cache; more data can be stored in the l2 cache for quick access later
Has virtualization support Yes vs No Somewhat common; Boosts performance of virtual machines
Much better overclocked clock speed (Air) 4.48 GHz vs 1.71 GHz Around 2.8x better overclocked clock speed (Air)
More cores 4 vs 1 3 more cores; run more applications at once
More threads 8 vs 2 6 more threads
Newer Jun, 2013 vs Apr, 2008 Release date over 5 years later
Much better overclocked clock speed (Water) 4.55 GHz vs 0.8 GHz Around 5.8x better overclocked clock speed (Water)
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 68.25W 129.2x lower typical power consumption
More l2 cache per core 0.5 MB/core vs 0.25 MB/core 2x more l2 cache per core
Much lower annual home energy cost 0.16 $/year vs 20.24 $/year 129.2x lower annual home energy cost
Much lower annual commercial energy cost 0.57 $/year vs 73.58 $/year 129.2x lower annual commercial energy cost

Features Key features of the Core i7 4770K  vs Atom Z500 

clock speed

Core i7 4770K
3.5 GHz
Atom Z500
0.8 GHz

L2 cache

Atom Z500
0.5 MB

overclocked clock speed (air)

Core i7 4770K
4.48 GHz
Atom Z500
1.71 GHz

overclocked clock speed (water)

Core i7 4770K
4.55 GHz
Atom Z500
0.8 GHz

TDP

Specifications Full list of technical specs

summary

Core i7 4770K  vs
Atom Z500 
Clock speed 3.5 GHz 0.8 GHz
Cores Quad core Single core

features

Has a NX bit Yes Yes
Supports trusted computing No No
Has virtualization support Yes No
Instruction set extensions
SSE2
F16C
MMX
SSE4
AVX
SSE3
EM64T
SSE
SSE4.1
FMA3
SSE4.2
Supplemental SSE3
AES
AVX 2.0
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 84W 0.65W
Annual home energy cost 20.24 $/year 0.16 $/year
Annual commercial energy cost 73.58 $/year 0.57 $/year
Typical power consumption 68.25W 0.53W

details

Core i7 4770K  vs
Atom Z500 
Architecture x86-64 x86
Threads 8 2
L2 cache 1 MB 0.5 MB
L2 cache per core 0.25 MB/core 0.5 MB/core
Manufacture process 22 nm 45 nm
Max CPUs 1 1

overclocking

Overclocked clock speed 4.48 GHz 1.71 GHz
Overclocked clock speed (Water) 4.55 GHz 0.8 GHz
Overclocked clock speed (Air) 4.48 GHz 1.71 GHz

integrated graphics

GPU GPU None
Label Intel® HD Graphics 4600 N/A
Number of displays supported 3 N/A
GPU clock speed 350 MHz N/A
Turbo clock speed 1,250 MHz N/A

bus

Architecture DMI 2.0 FSB
Number of links 0 1
Intel Core i7 4770K
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Intel Atom Z500
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