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Differences What are the advantages of each

Front view of Intel Xeon E5-2620 v3

Reasons to consider the
Intel Xeon E5-2620 v3

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Much better performance per dollar 4.08 pt/$ vs 0.65 pt/$ More than 6.2x better performance per dollar
Higher turbo clock speed 3.2 GHz vs 2.5 GHz Around 30% higher turbo clock speed
Higher clock speed 2.4 GHz vs 1.9 GHz More than 25% higher clock speed
Supports more CPUs in SMP configuration 2 vs 1 Twice as many CPUs in SMP configuration
Supports more RAM 786,432 MB vs 131,072 MB Supports 6x more RAM
Much better performance per watt 12.6 pt/W vs 7.25 pt/W Around 75% better performance per watt
Better overclocked clock speed (Air) 2.66 GHz vs 1.9 GHz More than 40% better overclocked clock speed (Air)
Better PassMark (Single core) score 1,683 vs 1,385 More than 20% better PassMark (Single core) score
Better PassMark score 9,977 vs 8,612 More than 15% better PassMark score
Significantly better overclocked clock speed (Water) 2.87 GHz vs 1.9 GHz More than 50% better overclocked clock speed (Water)
Front view of Intel Xeon D-1528

Reasons to consider the
Intel Xeon D-1528

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Much lower typical power consumption 28.44W vs 69.06W 2.4x lower typical power consumption
Significantly newer manufacturing process 14 nm vs 22 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much lower annual home energy cost 8.43 $/year vs 20.48 $/year 2.4x lower annual home energy cost
Much lower annual commercial energy cost 30.66 $/year vs 74.46 $/year 2.4x lower annual commercial energy cost
Newer Oct, 2015 vs Jul, 2014 Release date over 1 years later

Benchmarks Real world tests of Xeon E5-2620 v3 vs D-1528

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Xeon E5-2620 v3  vs
D-1528 
Clock speed 2.4 GHz 1.9 GHz
Turbo clock speed 3.2 GHz 2.5 GHz
Cores Hexa core Hexa core

features

Has a NX bit Yes Yes
Supports trusted computing Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
AES
AVX
AVX 2.0
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 85W 35W
Annual home energy cost 20.48 $/year 8.43 $/year
Annual commercial energy cost 74.46 $/year 30.66 $/year
Performance per watt 12.6 pt/W 7.25 pt/W
Typical power consumption 69.06W 28.44W

bus

Architecture QPI FSB
Number of links 2 1

details

Xeon E5-2620 v3  vs
D-1528 
Architecture x86-64 x86-64
Threads 12 12
Manufacture process 22 nm 14 nm
Max CPUs 2 1

overclocking

Overclocked clock speed 2.66 GHz 1.9 GHz
Overclocked clock speed (Water) 2.87 GHz 1.9 GHz
Overclocked clock speed (Air) 2.66 GHz 1.9 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
DDR
Channels Quad Channel Dual Channel
Supports ECC Yes Yes
Maximum bandwidth 6,400 MB/s 12,800 MB/s
Maximum memory size 786,432 MB 131,072 MB
Intel Xeon E5-2620 v3
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Intel Xeon D-1528
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