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Differences What are the advantages of each

Front view of Intel Xeon EC5549

Reasons to consider the
Intel Xeon EC5549

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Supports more CPUs in SMP configuration 2 vs 1 Twice as many CPUs in SMP configuration
Front view of Intel Xeon E3-1286 v3

Reasons to consider the
Intel Xeon E3-1286 v3

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Much higher clock speed 3.7 GHz vs 2.53 GHz More than 45% higher clock speed
Much higher turbo clock speed 3.9 GHz vs 2.93 GHz Around 35% higher turbo clock speed
Has a built-in GPU Yes vs No Somewhat common; A separate graphics adapter is not required
Newer manufacturing process 22 nm vs 45 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Newer May, 2014 vs Feb, 2010 Release date over 4 years later

Features Key features of the Xeon EC5549  vs E3-1286 v3 

clock speed

Xeon EC5549
2.53 GHz
Xeon E3-1286 v3
3.7 GHz

turbo clock speed

Xeon EC5549
2.93 GHz
Xeon E3-1286 v3
3.9 GHz

L2 cache

L3 cache

Specifications Full list of technical specs

summary

Xeon EC5549  vs
E3-1286 v3 
Clock speed 2.53 GHz 3.7 GHz
Turbo clock speed 2.93 GHz 3.9 GHz
Cores Quad core Quad core
Socket type
LGA 1366
LGA 1150

features

Has a NX bit Yes Yes
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

memory controller

Memory controller Built-in Built-in
Memory type
DDR3-1600
DDR3
Channels Triple Channel Dual Channel
Supports ECC Yes Yes
Maximum bandwidth 19,200 MB/s 25,600 MB/s

details

Xeon EC5549  vs
E3-1286 v3 
Architecture x86-64 x86-64
Threads 8 8
L2 cache 1 MB 1 MB
L2 cache per core 0.25 MB/core 0.25 MB/core
L3 cache 8 MB 8 MB
L3 cache per core 2 MB/core 2 MB/core
Manufacture process 45 nm 22 nm
Max CPUs 2 1

integrated graphics

GPU None GPU
Label N/A Intel® HD Graphics P4700
Number of displays supported N/A 3
GPU clock speed N/A 350 MHz
Turbo clock speed N/A 1,300 MHz

power consumption

TDP 85W 84W
Annual home energy cost 20.48 $/year 20.24 $/year
Annual commercial energy cost 74.46 $/year 73.58 $/year
Typical power consumption 69.06W 68.25W

bus

Architecture QPI DMI
Number of links 1 0
Transfer rate 5,870 MT/s 5,000 MT/s
Intel Xeon EC5549
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Intel Xeon E3-1286 v3
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