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Differences What are the advantages of each

Front view of Intel Xeon EC5539

Reasons to consider the
Intel Xeon EC5539

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Significantly lower typical power consumption 52.81W vs 77.19W More than 30% lower typical power consumption
Supports more CPUs in SMP configuration 2 vs 1 Twice as many CPUs in SMP configuration
More l2 cache per core 0.5 MB/core vs 0.25 MB/core 2x more l2 cache per core
More l3 cache per core 2 MB/core vs 1.5 MB/core Around 35% more l3 cache per core
Significantly lower annual home energy cost 15.66 $/year vs 22.89 $/year More than 30% lower annual home energy cost
Significantly lower annual commercial energy cost 56.94 $/year vs 83.22 $/year More than 30% lower annual commercial energy cost
Front view of Intel Core i5 2500

Reasons to consider the
Intel Core i5 2500

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Significantly higher clock speed 3.3 GHz vs 2.27 GHz More than 45% higher clock speed
Has a built-in GPU Yes vs No Somewhat common; A separate graphics adapter is not required
Much newer manufacturing process 32 nm vs 45 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Slightly more l3 cache 6 MB vs 4 MB 50% more l3 cache; more data can be stored in the l3 cache for quick access later
More cores 4 vs 2 Twice as many cores; run more applications at once
More threads 4 vs 2 Twice as many threads
Newer Jan, 2011 vs Feb, 2010 Release date 10 months later

Features Key features of the Xeon EC5539  vs Core i5 2500 

clock speed

Xeon EC5539
2.27 GHz
Core i5 2500
3.3 GHz

L2 cache

L3 cache

Specifications Full list of technical specs

summary

Xeon EC5539  vs
Core i5 2500 
Clock speed 2.27 GHz 3.3 GHz
Cores Dual core Quad core
Socket type
LGA 1366
LGA 1155

features

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

power consumption

TDP 65W 95W
Annual home energy cost 15.66 $/year 22.89 $/year
Annual commercial energy cost 56.94 $/year 83.22 $/year
Typical power consumption 52.81W 77.19W

details

Xeon EC5539  vs
Core i5 2500 
Architecture x86-64 x86-64
Threads 2 4
L2 cache 1 MB 1 MB
L2 cache per core 0.5 MB/core 0.25 MB/core
L3 cache 4 MB 6 MB
L3 cache per core 2 MB/core 1.5 MB/core
Manufacture process 45 nm 32 nm
Max CPUs 2 1
Operating temperature Unknown - 74.6°C Unknown - 72.6°C

integrated graphics

GPU None GPU
Label N/A Intel® HD Graphics 2000
Number of displays supported N/A 2
GPU clock speed N/A 850 MHz
Turbo clock speed N/A 1,100 MHz

memory controller

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

bus

Architecture QPI DMI
Number of links 1 1
Transfer rate 5,870 MT/s 5,000 MT/s
Intel Xeon EC5539
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Intel Core i5 2500
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