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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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Lower typical power consumption 20.31W vs 28.44W Around 30% lower typical power consumption
Higher GPU clock speed 350 MHz vs 300 MHz More than 15% higher GPU clock speed
Better overclocked clock speed (Air) 2.8 GHz vs 2.3 GHz More than 20% better overclocked clock speed (Air)
Newer Oct, 2015 vs Apr, 2015 Release date 6 months later
Better overclocked clock speed (Water) 2.8 GHz vs 2.3 GHz More than 20% better overclocked clock speed (Water)
Lower annual commercial energy cost 21.9 $/year vs 30.66 $/year Around 30% lower annual commercial energy cost
Lower annual home energy cost 6.02 $/year vs 8.43 $/year Around 30% lower annual home energy cost
Front view of Intel Xeon E3-1265L v4

Reasons to consider the
Intel Xeon E3-1265L v4

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Higher turbo clock speed 3.3 GHz vs 2.8 GHz Around 20% higher turbo clock speed
Higher clock speed 2.3 GHz vs 2 GHz Around 15% higher clock speed
Much better performance per dollar 1.25 pt/$ vs 0.55 pt/$ More than 2.2x better performance per dollar
Much better performance per watt 14.84 pt/W vs 9.45 pt/W More than 55% better performance per watt
Better turbo clock speed 1,050 MHz vs 1,000 MHz 5% better turbo clock speed

Features Key features of the Xeon E3-1505L v5  vs E3-1265L v4 

clock speed

turbo clock speed

gpu clock speed

overclocked clock speed (air)

overclocked clock speed (water)

Specifications Full list of technical specs

summary

Xeon E3-1505L v5  vs
E3-1265L v4 
Clock speed 2 GHz 2.3 GHz
Turbo clock speed 2.8 GHz 3.3 GHz
Cores Quad core Quad core

features

Has a NX bit Yes Yes
Supports trusted computing Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE2
MMX
SSE4
AVX
SSE3
SSE
SSE4.1
SSE4.2
Supplemental SSE3
AES
AVX 2.0
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 25W 35W
Annual home energy cost 6.02 $/year 8.43 $/year
Annual commercial energy cost 21.9 $/year 30.66 $/year
Performance per watt 9.45 pt/W 14.84 pt/W
Typical power consumption 20.31W 28.44W

bus

Architecture FSB DMI
Number of links 1 0
Transfer rate 8,000 MT/s 5,000 MT/s

details

Xeon E3-1505L v5  vs
E3-1265L v4 
Architecture x86-64 x86-64
Threads 8 8
Manufacture process 14 nm 14 nm
Max CPUs 1 1

overclocking

Overclocked clock speed 2.8 GHz 2.3 GHz
Overclocked clock speed (Water) 2.8 GHz 2.3 GHz
Overclocked clock speed (Air) 2.8 GHz 2.3 GHz

integrated graphics

GPU GPU GPU
Label Intel® HD Graphics P530 Intel® Iris™ Pro Graphics P6300
Number of displays supported 3 3
GPU clock speed 350 MHz 300 MHz
Turbo clock speed 1,000 MHz 1,050 MHz

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
Maximum memory size 65,536 MB 32,768 MB
Intel Xeon E3-1505L v5
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Intel Xeon E3-1265L v4
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