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Differences What are the advantages of each

Front view of Intel Xeon E7-4809 v2

Reasons to consider the
Intel Xeon E7-4809 v2

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Supports more CPUs in SMP configuration 4 vs 1 3 supports more CPUs in SMP configuration
Supports more RAM 1,572,864 MB vs 65,536 MB Supports 24x more RAM
Significantly lower typical power consumption 85.31W vs 113.75W 25% lower typical power consumption
Supports trusted computing Yes vs No Somewhat common; Allows for safer, more reliable computing
Significantly lower annual home energy cost 25.29 $/year vs 33.73 $/year 25% lower annual home energy cost
Significantly lower annual commercial energy cost 91.98 $/year vs 122.64 $/year Around 25% lower annual commercial energy cost
Front view of Intel Core i7 5820K

Reasons to consider the
Intel Core i7 5820K

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Is unlocked Yes vs No Somewhat common; An unlocked multiplier allows for easier overclocking
Much higher clock speed 3.3 GHz vs 1.9 GHz Around 75% higher clock speed
Supports dynamic frequency scaling Yes vs No Somewhat common; Allows for maximum performance when needed, while conserving power and minimizing heat production when not needed
More l3 cache 15 MB vs 12 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
Newer Jul, 2014 vs Feb, 2014 Release date 4 months later

Features Key features of the Xeon E7-4809 v2  vs Core i7 5820K 

clock speed

Xeon E7-4809 v2
1.9 GHz
Core i7 5820K
3.3 GHz

L3 cache

Specifications Full list of technical specs

summary

Xeon E7-4809 v2  vs
Core i7 5820K 
Clock speed 1.9 GHz 3.3 GHz
Cores Hexa core Hexa core
Is unlocked No Yes

features

Has a NX bit Yes Yes
Supports trusted computing Yes No
Has virtualization support Yes Yes
Instruction set extensions
SSE2
MMX
SSE4
AVX
SSE3
SSE
SSE4.2
Supplemental SSE3
AES
AVX 2.0
Supports dynamic frequency scaling No Yes

memory controller

Memory controller Built-in Built-in
Memory type
DDR3-1066
DDR4-1333
DDR4-1600
DDR4-2133
Channels Quad Channel Quad Channel
Supports ECC Yes No
Maximum memory size 1,572,864 MB 65,536 MB

details

Xeon E7-4809 v2  vs
Core i7 5820K 
Architecture x86-64 x86-64
Threads 12 12
L3 cache 12 MB 15 MB
L3 cache per core 2 MB/core 2.5 MB/core
Manufacture process 22 nm 22 nm
Max CPUs 4 1

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 105W 140W
Annual home energy cost 25.29 $/year 33.73 $/year
Annual commercial energy cost 91.98 $/year 122.64 $/year
Typical power consumption 85.31W 113.75W

bus

Architecture QPI QPI
Number of links 3 0
Transfer rate 6,400 MT/s 0 MT/s
Clock speed 3,200 MHz 0 MHz
Intel Xeon E7-4809 v2
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Intel Core i7 5820K
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