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Differences What are the advantages of each

Front view of Intel Xeon EC3539

Reasons to consider the
Intel Xeon EC3539

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Much newer manufacturing process 45 nm vs 65 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Has virtualization support Yes vs No Somewhat common; Boosts performance of virtual machines
More cores 4 vs 2 Twice as many cores; run more applications at once
Newer Feb, 2010 vs Jan, 2008 Release date over 2 years later
More threads 4 vs 2 Twice as many threads
Front view of Intel Pentium E2220

Reasons to consider the
Intel Pentium E2220

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Higher clock speed 2.4 GHz vs 2.13 GHz Around 15% higher clock speed
Significantly better overclocked clock speed (Air) 3.27 GHz vs 2.13 GHz Around 55% better overclocked clock speed (Air)
More l2 cache per core 0.5 MB/core vs 0.25 MB/core 2x more l2 cache per core
Much better overclocked clock speed (Water) 3.5 GHz vs 2.13 GHz Around 65% better overclocked clock speed (Water)

Features Key features of the Xeon EC3539  vs Pentium E2220 

clock speed

Xeon EC3539
2.13 GHz
Pentium E2220
2.4 GHz

L2 cache

overclocked clock speed (air)

Xeon EC3539
2.13 GHz
Pentium E2220
3.27 GHz

overclocked clock speed (water)

Xeon EC3539
2.13 GHz
Pentium E2220
3.5 GHz

Specifications Full list of technical specs

summary

Xeon EC3539  vs
Pentium E2220 
Clock speed 2.13 GHz 2.4 GHz
Cores Quad core Dual core
Socket type
LGA 1366
LGA 775

features

Has a NX bit Yes Yes
Has virtualization support Yes No
Instruction set extensions
SSE2
MMX
SSE3
SSE
SSE4.1
SSE4.2
Supplemental SSE3
Supports dynamic frequency scaling Yes Yes

power consumption

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

bus

Architecture DMI FSB
Number of links 1 1

details

Xeon EC3539  vs
Pentium E2220 
Architecture x86-64 x86-64
Threads 4 2
L2 cache 1 MB 1 MB
L2 cache per core 0.25 MB/core 0.5 MB/core
Manufacture process 45 nm 65 nm
Max CPUs 1 1
Voltage range 1 - 1.5V 0.85 - 1.5V
Operating temperature Unknown - 74.6°C Unknown - 73.3°C

overclocking

Overclocked clock speed 2.13 GHz 3.27 GHz
Overclocked clock speed (Water) 2.13 GHz 3.5 GHz
Overclocked clock speed (Air) 2.13 GHz 3.27 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
Intel Xeon EC3539
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Intel Pentium E2220
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