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Differences What are the advantages of each

Front view of Intel Xeon E3-1280 v3

Reasons to consider the
Intel Xeon E3-1280 v3

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Supports trusted computing Yes vs No Somewhat common; Allows for safer, more reliable computing
Lower typical power consumption 66.63W vs 71.5W More than 5% lower typical power consumption
Lower annual home energy cost 19.75 $/year vs 21.2 $/year More than 5% lower annual home energy cost
Lower annual commercial energy cost 71.83 $/year vs 77.09 $/year More than 5% lower annual commercial energy cost
Front view of Intel Core i7 4790K

Reasons to consider the
Intel Core i7 4790K

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Has a built-in GPU Yes vs No Somewhat common; A separate graphics adapter is not required
Higher clock speed 4 GHz vs 3.6 GHz More than 10% higher clock speed
Higher turbo clock speed 4.4 GHz vs 4 GHz More than 10% higher turbo clock speed
Significantly better overclocked clock speed (Air) 4.63 GHz vs 3.6 GHz Around 30% better overclocked clock speed (Air)
Significantly better overclocked clock speed (Water) 4.8 GHz vs 3.6 GHz Around 35% better overclocked clock speed (Water)
Newer Apr, 2014 vs Apr, 2013 Release date a year later

Features Key features of the Xeon E3-1280 v3  vs Core i7 4790K 

clock speed

turbo clock speed

L3 cache

overclocked clock speed (air)

Xeon E3-1280 v3
3.6 GHz
Core i7 4790K
4.63 GHz

overclocked clock speed (water)

Xeon E3-1280 v3
3.6 GHz
Core i7 4790K
4.8 GHz

Specifications Full list of technical specs

summary

Xeon E3-1280 v3  vs
Core i7 4790K 
Clock speed 3.6 GHz 4 GHz
Turbo clock speed 4 GHz 4.4 GHz
Cores Quad 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
Supplemental SSE3
AES
AVX 2.0
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 82W 88W
Annual home energy cost 19.75 $/year 21.2 $/year
Annual commercial energy cost 71.83 $/year 77.09 $/year
Typical power consumption 66.63W 71.5W

bus

Architecture DMI DMI 2.0
Number of links 0 0
Transfer rate 5,000 MT/s 5,000 MT/s

details

Xeon E3-1280 v3  vs
Core i7 4790K 
Architecture x86-64 x86-64
Threads 8 8
L3 cache 8 MB 8 MB
L3 cache per core 2 MB/core 2 MB/core
Manufacture process 22 nm 22 nm
Max CPUs 1 1

overclocking

Overclocked clock speed 3.6 GHz 4.63 GHz
Overclocked clock speed (Water) 3.6 GHz 4.8 GHz
Overclocked clock speed (Air) 3.6 GHz 4.63 GHz

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

memory controller

Memory controller Built-in Built-in
Memory type
DDR3-1600
DDR3L-1600
DDR3-1333
DDR3
Channels Dual Channel Dual Channel
Supports ECC Yes No
Maximum bandwidth 25,600 MB/s 25,600 MB/s
Maximum memory size 32,768 MB 32,768 MB
Intel Xeon E3-1280 v3
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Intel Core i7 4790K
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