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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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Significantly higher clock speed 3.7 GHz vs 3.5 GHz More than 5% higher clock speed
Significantly 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
Much better overclocked clock speed (Air) 4.75 GHz vs 4.21 GHz Around 15% better overclocked clock speed (Air)
Higher turbo clock speed 4 GHz vs 3.9 GHz Around 5% higher turbo clock speed
More l3 cache per core 2.5 MB/core vs 2 MB/core 25% more l3 cache per core
Front view of Intel Xeon E5 1650 v2

Reasons to consider the
Intel Xeon E5 1650 v2

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Much better overclocked clock speed (Water) 4.45 GHz vs 3.7 GHz More than 20% better overclocked clock speed (Water)

Features Key features of the Xeon E5 1660 v2  vs 1650 v2 

clock speed

turbo clock speed

L2 cache

L3 cache

overclocked clock speed (air)

Xeon E5 1660 v2
4.75 GHz
Xeon E5 1650 v2
4.21 GHz

overclocked clock speed (water)

Xeon E5 1660 v2
3.7 GHz
Xeon E5 1650 v2
4.45 GHz

Specifications Full list of technical specs

summary

Xeon E5 1660 v2  vs
1650 v2 
Clock speed 3.7 GHz 3.5 GHz
Turbo clock speed 4 GHz 3.9 GHz
Cores Hexa core Hexa core
Socket type
LGA 2011
Is unlocked No No

features

Has a NX bit Yes Yes
Supports trusted computing Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE2
F16C
MMX
SSE4
AVX
SSE3
EM64T
SSE
SSE4.1
SSE4.2
Supplemental SSE3
AES
Supports dynamic frequency scaling Yes Yes

power consumption

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

memory controller

Memory controller Built-in Built-in
Memory type
DDR3-1866
DDR3-1600
DDR3-1333
DDR3-1066
DDR3
DDR3-800
Channels Quad Channel Quad Channel
Supports ECC Yes Yes
Maximum bandwidth 59,733.32 MB/s 59,733.32 MB/s
Maximum memory size 262,144 MB 262,144 MB

details

Xeon E5 1660 v2  vs
1650 v2 
Architecture x86-64 x86-64
Threads 12 12
L2 cache 1.5 MB 1.5 MB
L2 cache per core 0.25 MB/core 0.25 MB/core
L3 cache 15 MB 12 MB
L3 cache per core 2.5 MB/core 2 MB/core
Manufacture process 22 nm 22 nm
Max CPUs 1 1
Clock multiplier 37 35
Voltage range 0.65 - 1.3V 0.65 - 1.3V
Operating temperature Unknown - 70°C Unknown - 70°C

overclocking

Overclocked clock speed 4.75 GHz 4.21 GHz
Overclocked clock speed (Water) 3.7 GHz 4.45 GHz
Overclocked clock speed (Air) 4.75 GHz 4.21 GHz

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

bus

Architecture QPI QPI
Number of links 0 0
Transfer rate 0 MT/s 0 MT/s
Intel Xeon E5 1660 v2
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Intel Xeon E5 1650 v2
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