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Differences What are the advantages of each

Front view of Intel Xeon E7-4820 v2

Reasons to consider the
Intel Xeon E7-4820 v2

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Supports more RAM 1,572,864 MB vs 786,432 MB Supports 2x more RAM
Supports more CPUs in SMP configuration 4 vs 2 Twice as many CPUs in SMP configuration
Front view of Intel Xeon E5 2650 v2

Reasons to consider the
Intel Xeon E5 2650 v2

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Much higher clock speed 2.6 GHz vs 2 GHz More than 30% higher clock speed
Much higher turbo clock speed 3.4 GHz vs 2.5 GHz More than 35% higher turbo clock speed
Much more l3 cache 20 MB vs 16 MB 25% 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 MB/core 25% more l3 cache per core
Lower typical power consumption 77.19W vs 85.31W Around 10% lower typical power consumption
Lower annual commercial energy cost 83.22 $/year vs 91.98 $/year Around 10% lower annual commercial energy cost
Lower annual home energy cost 22.89 $/year vs 25.29 $/year Around 10% lower annual home energy cost

Features Key features of the Xeon E7-4820 v2  vs E5 2650 v2 

clock speed

turbo clock speed

L2 cache

L3 cache

Specifications Full list of technical specs


Xeon E7-4820 v2  vs
E5 2650 v2 
Clock speed 2 GHz 2.6 GHz
Turbo clock speed 2.5 GHz 3.4 GHz
Cores Octa core Octa core
Socket type
LGA 2011
Is unlocked No No


Has a NX bit Yes Yes
Supports trusted computing Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
Supplemental SSE3
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 105W 95W
Annual home energy cost 25.29 $/year 22.89 $/year
Annual commercial energy cost 91.98 $/year 83.22 $/year
Typical power consumption 85.31W 77.19W


Architecture QPI QPI
Number of links 3 2
Data rate 86,400 MB/s 64,000 MB/s
Transfer rate 7,200 MT/s 8,000 MT/s
Clock speed 3,600 MHz 4,000 MHz


Xeon E7-4820 v2  vs
E5 2650 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 16 MB 20 MB
L3 cache per core 2 MB/core 2.5 MB/core
Manufacture process 22 nm 22 nm
Max CPUs 4 2
Clock multiplier 20 26
Operating temperature Unknown - 68°C Unknown - 75°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
Channels Quad Channel Quad Channel
Supports ECC Yes Yes
Maximum bandwidth 42,666.64 MB/s 59,733.32 MB/s
Maximum memory size 1,572,864 MB 786,432 MB
Intel Xeon E7-4820 v2
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Intel Xeon E5 2650 v2
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