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Differences What are the advantages of each

Front view of Intel Xeon E3-1220

Reasons to consider the
Intel Xeon E3-1220

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Much higher clock speed 3.1 GHz vs 1.7 GHz More than 80% higher clock speed
Much higher turbo clock speed 3.4 GHz vs 2 GHz 70% higher turbo clock speed
Much better overclocked clock speed (Air) 3.49 GHz vs 1.7 GHz More than 2x better overclocked clock speed (Air)
More cores 4 vs 2 Twice as many cores; run more applications at once
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
More threads 4 vs 2 Twice as many threads
Much better overclocked clock speed (Water) 3.1 GHz vs 1.7 GHz More than 80% better overclocked clock speed (Water)
Supports more RAM 32,768 MB vs 16,384 MB Supports 2x more RAM
Front view of Intel Atom C2350

Reasons to consider the
Intel Atom C2350

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Much higher Maximum operating temperature 98 °C vs 69.1 °C More than 40% higher Maximum operating temperature
Much lower typical power consumption 4.88W vs 65W 13.3x lower typical power consumption
Newer manufacturing process 22 nm vs 32 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much lower annual commercial energy cost 5.26 $/year vs 70.08 $/year 13.3x lower annual commercial energy cost
Much lower annual home energy cost 1.45 $/year vs 19.27 $/year 13.3x lower annual home energy cost
Newer Jul, 2013 vs Apr, 2011 Release date over 2 years later

Features Key features of the Xeon E3-1220  vs Atom C2350 

clock speed

Xeon E3-1220
3.1 GHz
Atom C2350
1.7 GHz

turbo clock speed

Xeon E3-1220
3.4 GHz
Atom C2350
2 GHz

overclocked clock speed (air)

Xeon E3-1220
3.49 GHz
Atom C2350
1.7 GHz

overclocked clock speed (water)

Xeon E3-1220
3.1 GHz
Atom C2350
1.7 GHz

Specifications Full list of technical specs

summary

Xeon E3-1220  vs
Atom C2350 
Clock speed 3.1 GHz 1.7 GHz
Turbo clock speed 3.4 GHz 2 GHz
Cores Quad core Dual core

features

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

power consumption

TDP 80W 6W
Annual home energy cost 19.27 $/year 1.45 $/year
Annual commercial energy cost 70.08 $/year 5.26 $/year
Typical power consumption 65W 4.88W

bus

Architecture DMI FSB
Number of links 1 1

details

Xeon E3-1220  vs
Atom C2350 
Architecture x86-64 x86-64
Threads 4 2
Manufacture process 32 nm 22 nm
Max CPUs 1 1
Operating temperature Unknown - 69.1°C Unknown - 98°C

overclocking

Overclocked clock speed 3.49 GHz 1.7 GHz
Overclocked clock speed (Water) 3.1 GHz 1.7 GHz
Overclocked clock speed (Air) 3.49 GHz 1.7 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
DDR3-1333
DDR3-1066
DDR3
Channels Dual Channel Single Channel
Supports ECC Yes Yes
Maximum bandwidth 21,333.32 MB/s 6,400 MB/s
Maximum memory size 32,768 MB 16,384 MB
Intel Xeon E3-1220
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Intel Atom C2350
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