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Differences What are the advantages of each

Front view of Intel Xeon EC5509

Reasons to consider the
Intel Xeon EC5509

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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 72.72 °C More than 5% higher Maximum operating temperature
Front view of Intel Core i7 4790

Reasons to consider the
Intel Core i7 4790

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Much higher clock speed 3.6 GHz vs 2 GHz 80% higher clock speed
Much newer manufacturing process 22 nm vs 45 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Has a built-in GPU Yes vs No Somewhat common; A separate graphics adapter is not required
Newer May, 2014 vs Feb, 2010 Release date over 4 years later
More threads 8 vs 4 Twice as many threads

Features Key features of the Xeon EC5509  vs Core i7 4790 

clock speed

Xeon EC5509
2 GHz
Core i7 4790
3.6 GHz

L2 cache

L3 cache

Specifications Full list of technical specs


Xeon EC5509  vs
Core i7 4790 
Clock speed 2 GHz 3.6 GHz
Cores Quad core Quad core
Socket type
LGA 1366
LGA 1150


Has a NX bit Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
Supplemental SSE3
AVX 2.0
Supports dynamic frequency scaling Yes Yes

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


Xeon EC5509  vs
Core i7 4790 
Architecture x86-64 x86-64
Threads 4 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
Operating temperature Unknown - 77.6°C Unknown - 72.72°C

integrated graphics

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 1,200 MHz

memory controller

Memory controller Built-in Built-in
Channels Triple Channel Dual Channel
Supports ECC Yes No


Architecture QPI DMI 2.0
Number of links 1 0
Transfer rate 4,800 MT/s 5,000 MT/s
Intel Xeon EC5509
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Intel Core i7 4790
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