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Differences What are the advantages of each

Front view of Intel Xeon E3-1505L v5

Reasons to consider the
Intel Xeon E3-1505L v5

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Has a built-in GPU Yes vs No Somewhat common; A separate graphics adapter is not required
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
Much better PassMark (Single core) score 1,631 vs 579 More than 2.8x better PassMark (Single core) score
Slightly higher turbo clock speed 2.8 GHz vs 2.6 GHz Around 10% higher turbo clock speed
Better PassMark score 7,082 vs 3,344 More than 2x better PassMark score
Newer Oct, 2015 vs Jul, 2013 Release date over 2 years later
Better overclocked clock speed (Air) 2.8 GHz vs 2.4 GHz More than 15% better overclocked clock speed (Air)
Better overclocked clock speed (Water) 2.8 GHz vs 2.4 GHz More than 15% better overclocked clock speed (Water)
Front view of Intel Atom C2750

Reasons to consider the
Intel Atom C2750

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Higher clock speed 2.4 GHz vs 2 GHz Around 20% higher clock speed
Much better performance per dollar 1.38 pt/$ vs 0.55 pt/$ More than 2.5x better performance per dollar
More cores 8 vs 4 Twice as many cores; run more applications at once
Better performance per watt 11.79 pt/W vs 9.45 pt/W Around 25% better performance per watt
Slightly lower typical power consumption 16.25W vs 20.31W 20% lower typical power consumption
Slightly lower annual home energy cost 4.82 $/year vs 6.02 $/year More than 20% lower annual home energy cost
Slightly lower annual commercial energy cost 17.52 $/year vs 21.9 $/year Around 20% lower annual commercial energy cost

Benchmarks Real world tests of Xeon E3-1505L v5 vs Atom C2750

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Xeon E3-1505L v5  vs
Atom C2750 
Clock speed 2 GHz 2.4 GHz
Turbo clock speed 2.8 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
AVX 2.0
Supports dynamic frequency scaling Yes No

power consumption

TDP 25W 20W
Annual home energy cost 6.02 $/year 4.82 $/year
Annual commercial energy cost 21.9 $/year 17.52 $/year
Performance per watt 9.45 pt/W 11.79 pt/W
Typical power consumption 20.31W 16.25W

bus

Architecture FSB FSB
Number of links 1 1

details

Xeon E3-1505L v5  vs
Atom C2750 
Architecture x86-64 x86-64
Threads 8 8
Manufacture process 14 nm 22 nm
Max CPUs 1 1

overclocking

Overclocked clock speed 2.8 GHz 2.4 GHz
Overclocked clock speed (Water) 2.8 GHz 2.4 GHz
Overclocked clock speed (Air) 2.8 GHz 2.4 GHz

integrated graphics

GPU GPU None
Label Intel® HD Graphics P530 N/A
Number of displays supported 3 N/A
GPU clock speed 350 MHz N/A
Turbo clock speed 1,000 MHz N/A

memory controller

Memory controller Built-in Built-in
Memory type
DDR3L-1600
DDR3
Channels Dual Channel Dual Channel
Supports ECC Yes Yes
Maximum bandwidth 25,600 MB/s 12,800 MB/s
Intel Xeon E3-1505L v5
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Intel Atom C2750
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