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Differences What are the advantages of each

Front view of Intel E5-2640V4

Reasons to consider the
Intel E5-2640V4

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Significantly higher turbo clock speed 3.4 GHz vs 2.4 GHz More than 40% higher turbo clock speed
Higher clock speed 2.4 GHz vs 1.9 GHz More than 25% higher clock speed
Front view of Intel E5-2628LV4

Reasons to consider the
Intel E5-2628LV4

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More l3 cache 30 MB vs 25 MB 20% more l3 cache; more data can be stored in the l3 cache for quick access later
Lower typical power consumption 60.94W vs 73.13W More than 15% lower typical power consumption
More cores 12 vs 10 2 more cores; run more applications at once
More threads 24 vs 20 4 more threads
Higher Maximum operating temperature 87 °C vs 76 °C Around 15% higher Maximum operating temperature
Lower annual home energy cost 18.07 $/year vs 21.68 $/year More than 15% lower annual home energy cost
Lower annual commercial energy cost 65.7 $/year vs 78.84 $/year More than 15% lower annual commercial energy cost

Features Key features of the E5-2640V4  vs E5-2628LV4 

clock speed

E5-2640V4
2.4 GHz
E5-2628LV4
1.9 GHz

turbo clock speed

E5-2640V4
3.4 GHz
E5-2628LV4
2.4 GHz

L3 cache

E5-2640V4
25 MB
E5-2628LV4
30 MB

TDP

Specifications Full list of technical specs

summary

E5-2640V4  vs
E5-2628LV4 
Clock speed 2.4 GHz 1.9 GHz
Turbo clock speed 3.4 GHz 2.4 GHz
Cores Deca core Duodeca 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

memory controller

Memory controller Built-in Built-in
Channels Quad Channel Quad Channel
Supports ECC Yes Yes
Maximum memory size 1,572,864 MB 1,572,864 MB

details

E5-2640V4  vs
E5-2628LV4 
Architecture x86-64 x86-64
Threads 20 24
L3 cache 25 MB 30 MB
L3 cache per core 2.5 MB/core 2.5 MB/core
Manufacture process 14 nm 14 nm
Max CPUs 2 2
Operating temperature Unknown - 76°C Unknown - 87°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

power consumption

TDP 90W 75W
Annual home energy cost 21.68 $/year 18.07 $/year
Annual commercial energy cost 78.84 $/year 65.7 $/year
Typical power consumption 73.13W 60.94W

bus

Architecture QPI QPI
Number of links 2 2
Data rate 64,000 MB/s 64,000 MB/s
Transfer rate 8,000 MT/s 8,000 MT/s
Clock speed 4,000 MHz 4,000 MHz
Intel E5-2640V4
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Intel E5-2628LV4
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