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Differences What are the advantages of each

Front view of Intel Celeron G530

Reasons to consider the
Intel Celeron G530

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Significantly higher clock speed 2.4 GHz vs 1.33 GHz More than 80% 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 built-in GPU Yes vs No Somewhat common; A separate graphics adapter is not required
Much newer manufacturing process 32 nm vs 45 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
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
Significantly better overclocked clock speed (Air) 2.51 GHz vs 1.33 GHz Around 90% better overclocked clock speed (Air)
Newer Jul, 2011 vs Mar, 2009 Release date over 2 years later
More cores 2 vs 1 Twice as many cores; run more applications at once
Significantly better overclocked clock speed (Water) 2.4 GHz vs 1.33 GHz More than 80% better overclocked clock speed (Water)
Front view of Intel Atom Z520PT

Reasons to consider the
Intel Atom Z520PT

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Much lower typical power consumption 1.79W vs 52.81W 29.5x lower typical power consumption
Much lower annual home energy cost 0.53 $/year vs 15.66 $/year 29.5x lower annual home energy cost
Much lower annual commercial energy cost 1.93 $/year vs 56.94 $/year 29.5x lower annual commercial energy cost

Features Key features of the Celeron G530  vs Atom Z520PT 

clock speed

Celeron G530
2.4 GHz
Atom Z520PT
1.33 GHz

L2 cache

overclocked clock speed (air)

Celeron G530
2.51 GHz
Atom Z520PT
1.33 GHz

overclocked clock speed (water)

Celeron G530
2.4 GHz
Atom Z520PT
1.33 GHz

TDP

Specifications Full list of technical specs

summary

Celeron G530  vs
Atom Z520PT 
Clock speed 2.4 GHz 1.33 GHz
Cores Dual core Single core
Socket type
LGA 1155
437

features

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

power consumption

TDP 65W 2.2W
Annual home energy cost 15.66 $/year 0.53 $/year
Annual commercial energy cost 56.94 $/year 1.93 $/year
Typical power consumption 52.81W 1.79W

details

Celeron G530  vs
Atom Z520PT 
Architecture x86-64 x86
Threads 2 2
L2 cache 1 MB 0.5 MB
L2 cache per core 0.5 MB/core 0.5 MB/core
Manufacture process 32 nm 45 nm
Max CPUs 1 1
Clock multiplier 24 10

overclocking

Overclocked clock speed 2.51 GHz 1.33 GHz
Overclocked clock speed (Water) 2.4 GHz 1.33 GHz
Overclocked clock speed (Air) 2.51 GHz 1.33 GHz

integrated graphics

GPU GPU None
Label Intel® HD Graphics N/A
Number of displays supported 2 N/A
GPU clock speed 850 MHz N/A
Turbo clock speed 1,000 MHz N/A

bus

Architecture DMI FSB
Number of links 1 1
Intel Celeron G530
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Intel Atom Z520PT
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