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Differences What are the advantages of each

Front view of Intel Xeon E5 1660 v2

Reasons to consider the
Intel Xeon E5 1660 v2

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More l2 cache 1.5 MB vs 1 MB 50% more l2 cache; more data can be stored in the l2 cache for quick access later
More l3 cache 15 MB vs 8 MB Around 90% more l3 cache; more data can be stored in the l3 cache for quick access later
Supports trusted computing Yes vs No Somewhat common; Allows for safer, more reliable computing
More cores 6 vs 4 2 more cores; run more applications at once
More threads 12 vs 8 4 more threads
More l3 cache per core 2.5 MB/core vs 2 MB/core 25% more l3 cache per core
Supports more RAM 262,144 MB vs 32,768 MB Supports 8x more RAM
Front view of Intel Core i7 4790K

Reasons to consider the
Intel Core i7 4790K

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Is unlocked Yes vs No Somewhat common; An unlocked multiplier allows for easier overclocking
Has a built-in GPU Yes vs No Somewhat common; A separate graphics adapter is not required
Higher turbo clock speed 4.4 GHz vs 4 GHz More than 10% higher turbo clock speed
Higher clock speed 4 GHz vs 3.7 GHz Around 10% higher clock speed
Much lower typical power consumption 71.5W vs 105.63W More than 30% lower typical power consumption
Much lower annual home energy cost 21.2 $/year vs 31.32 $/year More than 30% lower annual home energy cost
Much lower annual commercial energy cost 77.09 $/year vs 113.88 $/year More than 30% lower annual commercial energy cost
Significantly better overclocked clock speed (Water) 4.8 GHz vs 3.7 GHz Around 30% better overclocked clock speed (Water)
Higher Maximum operating temperature 74.04 °C vs 70 °C More than 5% higher Maximum operating temperature
Newer Apr, 2014 vs Jul, 2013 Release date 9 months later

Features Key features of the Xeon E5 1660 v2  vs Core i7 4790K 

clock speed

turbo clock speed

L2 cache

L3 cache

overclocked clock speed (air)

Xeon E5 1660 v2
4.75 GHz
Core i7 4790K
4.63 GHz

overclocked clock speed (water)

Xeon E5 1660 v2
3.7 GHz
Core i7 4790K
4.8 GHz

Specifications Full list of technical specs

summary

Xeon E5 1660 v2  vs
Core i7 4790K 
Clock speed 3.7 GHz 4 GHz
Turbo clock speed 4 GHz 4.4 GHz
Cores Hexa core Quad 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
F16C
MMX
SSE4
AVX
SSE3
EM64T
SSE
SSE4.1
FMA3
SSE4.2
AES
AVX 2.0
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 130W 88W
Annual home energy cost 31.32 $/year 21.2 $/year
Annual commercial energy cost 113.88 $/year 77.09 $/year
Typical power consumption 105.63W 71.5W

bus

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

details

Xeon E5 1660 v2  vs
Core i7 4790K 
Architecture x86-64 x86-64
Threads 12 8
L2 cache 1.5 MB 1 MB
L2 cache per core 0.25 MB/core 0.25 MB/core
L3 cache 15 MB 8 MB
L3 cache per core 2.5 MB/core 2 MB/core
Manufacture process 22 nm 22 nm
Max CPUs 1 1
Operating temperature Unknown - 70°C Unknown - 74.04°C

overclocking

Overclocked clock speed 4.75 GHz 4.63 GHz
Overclocked clock speed (Water) 3.7 GHz 4.8 GHz
Overclocked clock speed (Air) 4.75 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
DDR3-1866
DDR3-1600
DDR3L-1600
DDR3-1333
DDR3-1066
DDR3
DDR3-800
Channels Quad Channel Dual Channel
Supports ECC Yes No
Maximum bandwidth 59,733.32 MB/s 25,600 MB/s
Maximum memory size 262,144 MB 32,768 MB
Intel Xeon E5 1660 v2
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Intel Core i7 4790K
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