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Differences What are the advantages of each

Front view of Intel Xeon E7-4830

Reasons to consider the
Intel Xeon E7-4830

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Much more l3 cache 24 MB vs 16 MB 50% more l3 cache; more data can be stored in the l3 cache for quick access later
Supports more RAM 2,097,152 MB vs 1,572,864 MB Supports around 35% more RAM
Higher clock speed 2.13 GHz vs 2 GHz More than 5% higher clock speed
Much more l3 cache per core 3 MB/core vs 2 MB/core 50% more l3 cache per core
Front view of Intel Xeon E7-4820 v2

Reasons to consider the
Intel Xeon E7-4820 v2

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Higher turbo clock speed 2.5 GHz vs 2.4 GHz Around 5% higher turbo clock speed
Newer manufacturing process 22 nm vs 32 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Newer Feb, 2014 vs Apr, 2011 Release date over 2 years later

Features Key features of the Xeon E7-4830  vs E7-4820 v2 

clock speed

Xeon E7-4830
2.13 GHz

turbo clock speed

Xeon E7-4830
2.4 GHz
Xeon E7-4820 v2
2.5 GHz

L2 cache

L3 cache

Specifications Full list of technical specs

summary

Xeon E7-4830  vs
E7-4820 v2 
Clock speed 2.13 GHz 2 GHz
Turbo clock speed 2.4 GHz 2.5 GHz
Cores Octa core Octa core
Socket type
LGA 1567
LGA 2011

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
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 105W 105W
Annual home energy cost 25.29 $/year 25.29 $/year
Annual commercial energy cost 91.98 $/year 91.98 $/year
Typical power consumption 85.31W 85.31W

bus

Architecture QPI QPI
Number of links 1 3
Data rate 25,600 MB/s 86,400 MB/s
Transfer rate 6,400 MT/s 7,200 MT/s
Clock speed 3,200 MHz 3,600 MHz

details

Xeon E7-4830  vs
E7-4820 v2 
Architecture x86-64 x86-64
Threads 16 16
L2 cache 2 MB 2 MB
L2 cache per core 0.25 MB/core 0.25 MB/core
L3 cache 24 MB 16 MB
L3 cache per core 3 MB/core 2 MB/core
Manufacture process 32 nm 22 nm
Max CPUs 4 4
Clock multiplier 16 20
Operating temperature Unknown - 64°C Unknown - 68°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
DDR3-1333
DDR3
DDR
Channels Quad Channel Quad Channel
Supports ECC Yes Yes
Maximum bandwidth 25,600 MB/s 42,666.64 MB/s
Maximum memory size 2,097,152 MB 1,572,864 MB
Intel Xeon E7-4830
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Intel Xeon E7-4820 v2
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