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Differences What are the advantages of each

Front view of Intel Xeon E5-2420 v2

Reasons to consider the
Intel Xeon E5-2420 v2

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Supports more CPUs in SMP configuration 2 vs 1 Twice as many CPUs in SMP configuration
Front view of Intel Xeon E5-1428L v2

Reasons to consider the
Intel Xeon E5-1428L v2

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Much higher Maximum operating temperature 80 °C vs 76 °C More than 5% higher Maximum operating temperature
Lower typical power consumption 48.75W vs 65W 25% lower typical power consumption
Lower annual commercial energy cost 52.56 $/year vs 70.08 $/year Around 25% lower annual commercial energy cost
Lower annual home energy cost 14.45 $/year vs 19.27 $/year Around 25% lower annual home energy cost

Features Key features of the Xeon E5-2420 v2  vs E5-1428L v2 

clock speed

turbo clock speed

Specifications Full list of technical specs

summary

Xeon E5-2420 v2  vs
E5-1428L v2 
Clock speed 2.2 GHz 2.2 GHz
Turbo clock speed 2.7 GHz 2.7 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
SSE2
F16C
MMX
SSE4
AVX
SSE3
EM64T
SSE
SSE4.1
SSE4.2
Supplemental SSE3
AES
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 80W 60W
Annual home energy cost 19.27 $/year 14.45 $/year
Annual commercial energy cost 70.08 $/year 52.56 $/year
Typical power consumption 65W 48.75W

bus

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

details

Xeon E5-2420 v2  vs
E5-1428L v2 
Architecture x86-64 x86-64
Threads 12 12
L3 cache 15 MB 15 MB
L3 cache per core 2.5 MB/core 2.5 MB/core
Manufacture process 22 nm 22 nm
Max CPUs 2 1
Voltage range 0.65 - 1.3V 0.65 - 1.3V
Operating temperature Unknown - 76°C Unknown - 80°C

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
DDR3-1066
DDR3
DDR3-800
Channels Triple Channel Triple Channel
Supports ECC Yes Yes
Maximum bandwidth 19,200 MB/s 38,400 MB/s
Maximum memory size 393,216 MB 393,216 MB
Intel Xeon E5-2420 v2
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Intel Xeon E5-1428L v2
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