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Differences What are the advantages of each

Front view of Intel Xeon E7-8891 v3

Reasons to consider the
Intel Xeon E7-8891 v3

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Supports more CPUs in SMP configuration 8 vs 1 7 supports more CPUs in SMP configuration
Supports more RAM 1,572,864 MB vs 32,768 MB Supports 48x more RAM
More cores 10 vs 4 6 more cores; run more applications at once
More threads 20 vs 8 12 more threads
Supports trusted computing Yes vs No Somewhat common; Allows for safer, more reliable computing
Higher Maximum operating temperature 79 °C vs 74.04 °C More than 5% higher Maximum operating temperature
Newer Apr, 2015 vs Apr, 2014 Release date a year later
Front view of Intel Core i7 4790K

Reasons to consider the
Intel Core i7 4790K

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Significantly higher clock speed 4 GHz vs 2.8 GHz Around 45% higher clock speed
Significantly higher turbo clock speed 4.4 GHz vs 3.5 GHz More than 25% higher turbo clock speed
Has a built-in GPU Yes vs No Somewhat common; A separate graphics adapter is not required
Much lower typical power consumption 71.5W vs 134.06W More than 45% lower typical power consumption
Much lower annual home energy cost 21.2 $/year vs 39.75 $/year More than 45% lower annual home energy cost
Much lower annual commercial energy cost 77.09 $/year vs 144.54 $/year More than 45% lower annual commercial energy cost

Features Key features of the Xeon E7-8891 v3  vs Core i7 4790K 

clock speed

turbo clock speed

Xeon E7-8891 v3
3.5 GHz
Core i7 4790K
4.4 GHz

Specifications Full list of technical specs

summary

Xeon E7-8891 v3  vs
Core i7 4790K 
Clock speed 2.8 GHz 4 GHz
Turbo clock speed 3.5 GHz 4.4 GHz
Cores Deca core Quad core

features

Has a NX bit Yes Yes
Supports trusted computing Yes No
Has virtualization support Yes Yes
Instruction set extensions
SSE2
F16C
MMX
SSE4
AVX
SSE3
EM64T
SSE
SSE4.1
FMA3
SSE4.2
AES
AVX 2.0
Supports dynamic frequency scaling Yes Yes

memory controller

Memory controller Built-in Built-in
Memory type
DDR3-1600
DDR3L-1600
DDR3-1333
DDR3-1066
Channels Quad Channel Dual Channel
Supports ECC Yes No
Maximum bandwidth 51,200 MB/s 25,600 MB/s
Maximum memory size 1,572,864 MB 32,768 MB

details

Xeon E7-8891 v3  vs
Core i7 4790K 
Architecture x86-64 x86-64
Threads 20 8
Manufacture process 22 nm 22 nm
Max CPUs 8 1
Operating temperature Unknown - 79°C Unknown - 74.04°C

integrated graphics

GPU None GPU
Label N/A Intel® HD Graphics 4600
Number of displays supported N/A 3
GPU clock speed N/A 350 MHz
Turbo clock speed N/A 1,250 MHz

power consumption

TDP 165W 88W
Annual home energy cost 39.75 $/year 21.2 $/year
Annual commercial energy cost 144.54 $/year 77.09 $/year
Typical power consumption 134.06W 71.5W

bus

Architecture QPI DMI 2.0
Number of links 3 0
Transfer rate 9,600 MT/s 5,000 MT/s
Intel Xeon E7-8891 v3
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Intel Core i7 4790K
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