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Differences What are the advantages of each

Front view of Intel Xeon E3-1220 v2

Reasons to consider the
Intel Xeon E3-1220 v2

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Much higher clock speed 3.1 GHz vs 2.4 GHz Around 30% higher clock speed
Much higher turbo clock speed 3.5 GHz vs 2.6 GHz Around 35% higher turbo clock speed
Much better PassMark score 6,602 vs 3,344 More than 95% better PassMark score
Much better PassMark (Single core) score 1,806 vs 579 More than 3x better PassMark (Single core) score
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
Much better overclocked clock speed (Air) 3.45 GHz vs 2.4 GHz Around 45% better overclocked clock speed (Air)
Much better overclocked clock speed (Water) 3.1 GHz vs 2.4 GHz Around 30% better overclocked clock speed (Water)
Front view of Intel Atom C2750

Reasons to consider the
Intel Atom C2750

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More cores 8 vs 4 Twice as many cores; run more applications at once
Much lower typical power consumption 16.25W vs 56.06W 3.4x lower typical power consumption
More threads 8 vs 4 Twice as many threads
Much lower annual commercial energy cost 17.52 $/year vs 60.44 $/year 3.4x lower annual commercial energy cost
Much lower annual home energy cost 4.82 $/year vs 16.62 $/year 3.4x lower annual home energy cost
Newer Jul, 2013 vs May, 2012 Release date over 1 years later

Benchmarks Real world tests of Xeon E3-1220 v2 vs Atom C2750

GeekBench 3 (Multi-core) Data courtesy Primate Labs

GeekBench 3 (Single core) Data courtesy Primate Labs

GeekBench 3 (AES single core) Data courtesy Primate Labs

Xeon E3-1220 v2
2,200,000 MB/s
Atom C2750
412,200 MB/s

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Xeon E3-1220 v2  vs
Atom C2750 
Clock speed 3.1 GHz 2.4 GHz
Turbo clock speed 3.5 GHz 2.6 GHz
Cores Quad core Octa core

features

Has virtualization support Yes Yes
Instruction set extensions
SSE2
MMX
SSE4
AVX
SSE3
EM64T
SSE
SSE4.1
SSE4.2
Supplemental SSE3
AES
Supports dynamic frequency scaling Yes No

power consumption

TDP 69W 20W
Annual home energy cost 16.62 $/year 4.82 $/year
Annual commercial energy cost 60.44 $/year 17.52 $/year
Performance per watt 13.51 pt/W 11.79 pt/W
Typical power consumption 56.06W 16.25W

bus

Architecture DMI FSB
Number of links 1 1

details

Xeon E3-1220 v2  vs
Atom C2750 
Architecture x86-64 x86-64
Threads 4 8
Manufacture process 22 nm 22 nm
Max CPUs 1 1

overclocking

Overclocked clock speed 3.45 GHz 2.4 GHz
Overclocked clock speed (Water) 3.1 GHz 2.4 GHz
Overclocked clock speed (Air) 3.45 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
DDR3-1600
DDR3-1333
DDR3
Channels Dual Channel Dual Channel
Supports ECC Yes Yes
Maximum bandwidth 25,600 MB/s 12,800 MB/s
Intel Xeon E3-1220 v2
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Intel Atom C2750
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