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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
Higher Maximum operating temperature 77.6 °C vs 69.1 °C More than 10% higher Maximum operating temperature
Front view of Intel Core i7 3770S

Reasons to consider the
Intel Core i7 3770S

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Much newer manufacturing process 22 nm vs 45 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Significantly higher turbo clock speed 3.9 GHz vs 2.93 GHz Around 35% higher turbo clock speed
Higher clock speed 3.1 GHz vs 2.53 GHz Around 25% higher clock speed
Has a built-in GPU Yes vs No Somewhat common; A separate graphics adapter is not required
Lower typical power consumption 52.81W vs 69.06W Around 25% lower typical power consumption
Newer Apr, 2012 vs Feb, 2010 Release date over 2 years later
Lower annual home energy cost 15.66 $/year vs 20.48 $/year Around 25% lower annual home energy cost
Lower annual commercial energy cost 56.94 $/year vs 74.46 $/year Around 25% lower annual commercial energy cost

Features Key features of the Xeon EC5549  vs Core i7 3770S 

clock speed

Xeon EC5549
2.53 GHz
Core i7 3770S
3.1 GHz

turbo clock speed

Xeon EC5549
2.93 GHz
Core i7 3770S
3.9 GHz

L2 cache

L3 cache

Specifications Full list of technical specs


Xeon EC5549  vs
Core i7 3770S 
Clock speed 2.53 GHz 3.1 GHz
Turbo clock speed 2.93 GHz 3.9 GHz
Cores Quad core Quad core
Socket type
LGA 1366
LGA 1155


Has a NX bit Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
Supplemental SSE3
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 85W 65W
Annual home energy cost 20.48 $/year 15.66 $/year
Annual commercial energy cost 74.46 $/year 56.94 $/year
Typical power consumption 69.06W 52.81W


Architecture QPI DMI
Number of links 1 1
Transfer rate 5,870 MT/s 5,000 MT/s


Xeon EC5549  vs
Core i7 3770S 
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
Voltage range 1 - 1.5V 0.25 - 1.52V
Operating temperature Unknown - 77.6°C 5 - 69.1°C

integrated graphics

Label N/A Intel® HD Graphics 4000
Latest DirectX N/A 11.x
Number of displays supported N/A 3
GPU clock speed N/A 650 MHz
Turbo clock speed N/A 1,150 MHz

memory controller

Memory controller Built-in Built-in
Memory type
Channels Triple Channel Dual Channel
Supports ECC Yes No
Maximum bandwidth 19,200 MB/s 25,600 MB/s
Intel Xeon EC5549
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Intel Core i7 3770S
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