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Differences What are the advantages of each

Front view of Intel Pentium D1508

Reasons to consider the
Intel Pentium D1508

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Supports dynamic frequency scaling Yes vs No Somewhat common; Allows for maximum performance when needed, while conserving power and minimizing heat production when not needed
Significantly newer manufacturing process 14 nm vs 22 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Newer Oct, 2015 vs Jul, 2013 Release date over 2 years later
Front view of Intel Atom C2538

Reasons to consider the
Intel Atom C2538

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Higher clock speed 2.4 GHz vs 2.2 GHz Around 10% higher clock speed
More cores 4 vs 2 Twice as many cores; run more applications at once
Lower typical power consumption 12.19W vs 20.31W 40% lower typical power consumption
Slightly better overclocked clock speed (Air) 2.4 GHz vs 2.2 GHz Around 10% better overclocked clock speed (Air)
Lower annual home energy cost 3.61 $/year vs 6.02 $/year 40% lower annual home energy cost
Lower annual commercial energy cost 13.14 $/year vs 21.9 $/year Around 40% lower annual commercial energy cost
Slightly better overclocked clock speed (Water) 2.4 GHz vs 2.2 GHz Around 10% better overclocked clock speed (Water)

Features Key features of the Pentium D1508  vs Atom C2538 

clock speed

Pentium D1508
2.2 GHz
Atom C2538
2.4 GHz

overclocked clock speed (air)

Pentium D1508
2.2 GHz
Atom C2538
2.4 GHz

overclocked clock speed (water)

Pentium D1508
2.2 GHz
Atom C2538
2.4 GHz

Specifications Full list of technical specs

summary

Pentium D1508  vs
Atom C2538 
Clock speed 2.2 GHz 2.4 GHz
Cores Dual core Quad core

features

Has a NX bit Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
AES
AVX
AVX 2.0
Supports dynamic frequency scaling Yes No

power consumption

TDP 25W 15W
Annual home energy cost 6.02 $/year 3.61 $/year
Annual commercial energy cost 21.9 $/year 13.14 $/year
Typical power consumption 20.31W 12.19W

bus

Architecture FSB FSB
Number of links 1 1

details

Pentium D1508  vs
Atom C2538 
Architecture x86-64 x86-64
Threads 4 4
Manufacture process 14 nm 22 nm
Max CPUs 1 1

overclocking

Overclocked clock speed 2.2 GHz 2.4 GHz
Overclocked clock speed (Water) 2.2 GHz 2.4 GHz
Overclocked clock speed (Air) 2.2 GHz 2.4 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

memory controller

Memory controller Built-in Built-in
Memory type
DDR3
Channels Dual Channel Dual Channel
Supports ECC Yes Yes
Maximum bandwidth 12,800 MB/s 12,800 MB/s
Maximum memory size 131,072 MB 65,536 MB
Intel Pentium D1508
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Intel Atom C2538
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