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Differences What are the advantages of each

Front view of Intel Xeon E7-4820

Reasons to consider the
Intel Xeon E7-4820

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Supports more RAM 2,097,152 MB vs 393,216 MB Supports more than 5.2x more RAM
Lower typical power consumption 85.31W vs 105.63W Around 20% lower typical power consumption
Supports more CPUs in SMP configuration 4 vs 2 Twice as many CPUs in SMP configuration
Lower annual commercial energy cost 91.98 $/year vs 113.88 $/year Around 20% lower annual commercial energy cost
Lower annual home energy cost 25.29 $/year vs 31.32 $/year Around 20% lower annual home energy cost
Front view of Intel Xeon E5-2680

Reasons to consider the
Intel Xeon E5-2680

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Much higher clock speed 2.7 GHz vs 2 GHz More than 35% higher clock speed
Much higher turbo clock speed 3.5 GHz vs 2.27 GHz Around 55% higher turbo clock speed
Much higher Maximum operating temperature 85 °C vs 64 °C Around 35% higher Maximum operating temperature
More l3 cache 20 MB vs 18 MB More than 10% more l3 cache; more data can be stored in the l3 cache for quick access later
More l3 cache per core 2.5 MB/core vs 2.25 MB/core More than 10% more l3 cache per core
Newer Mar, 2012 vs Apr, 2011 Release date 11 months later

Features Key features of the Xeon E7-4820  vs E5-2680 

clock speed

Xeon E7-4820
2 GHz
Xeon E5-2680
2.7 GHz

turbo clock speed

Xeon E7-4820
2.27 GHz
Xeon E5-2680
3.5 GHz

L2 cache

L3 cache

TDP

Specifications Full list of technical specs

summary

Xeon E7-4820  vs
E5-2680 
Clock speed 2 GHz 2.7 GHz
Turbo clock speed 2.27 GHz 3.5 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 130W
Annual home energy cost 25.29 $/year 31.32 $/year
Annual commercial energy cost 91.98 $/year 113.88 $/year
Typical power consumption 85.31W 105.63W

bus

Architecture QPI QPI
Number of links 1 2
Data rate 23,464 MB/s 64,000 MB/s
Transfer rate 5,860 MT/s 8,000 MT/s
Clock speed 2,930 MHz 4,000 MHz

details

Xeon E7-4820  vs
E5-2680 
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 18 MB 20 MB
L3 cache per core 2.25 MB/core 2.5 MB/core
Manufacture process 32 nm 32 nm
Max CPUs 4 2
Clock multiplier 15 35
Operating temperature Unknown - 64°C Unknown - 85°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
DDR
Channels Quad Channel Quad Channel
Supports ECC Yes Yes
Maximum bandwidth 25,600 MB/s 51,200 MB/s
Maximum memory size 2,097,152 MB 393,216 MB
Intel Xeon E7-4820
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Intel Xeon E5-2680
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