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Differences What are the advantages of each

Front view of Intel Pentium E5800

Reasons to consider the
Intel Pentium E5800

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Much higher Maximum operating temperature 74.1 °C vs 1 °C More than 74x higher Maximum operating temperature
Much newer manufacturing process 45 nm vs 65 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
More cores 2 vs 1 Twice as many cores; run more applications at once
Has virtualization support Yes vs No Somewhat common; Boosts performance of virtual machines
Significantly lower typical power consumption 52.81W vs 69.88W Around 25% lower typical power consumption
Newer Nov, 2010 vs Jan, 2006 Release date over 4 years later
Significantly lower annual home energy cost 15.66 $/year vs 20.72 $/year Around 25% lower annual home energy cost
Significantly lower annual commercial energy cost 56.94 $/year vs 75.34 $/year Around 25% lower annual commercial energy cost
Front view of Intel Pentium 4 661

Reasons to consider the
Intel Pentium 4 661

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Significantly higher clock speed 3.6 GHz vs 3.2 GHz More than 10% higher clock speed
Much better overclocked clock speed (Air) 4.55 GHz vs 4.17 GHz Around 10% better overclocked clock speed (Air)
Much better overclocked clock speed (Water) 5.04 GHz vs 4.34 GHz More than 15% better overclocked clock speed (Water)

Features Key features of the Pentium E5800  vs 4 661 

clock speed

Pentium E5800
3.2 GHz
Pentium 4 661
3.6 GHz

L2 cache

overclocked clock speed (air)

Pentium E5800
4.17 GHz
Pentium 4 661
4.55 GHz

overclocked clock speed (water)

Pentium E5800
4.34 GHz
Pentium 4 661
5.04 GHz

Specifications Full list of technical specs

summary

Pentium E5800  vs
4 661 
Clock speed 3.2 GHz 3.6 GHz
Cores Dual core Single core
Socket type
LGA 775

features

Has a NX bit Yes Yes
Supports trusted computing No No
Has virtualization support Yes No
Instruction set extensions
SSE2
MMX
SSE3
SSE
Supplemental SSE3
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 65W 86W
Annual home energy cost 15.66 $/year 20.72 $/year
Annual commercial energy cost 56.94 $/year 75.34 $/year
Typical power consumption 52.81W 69.88W

bus

Architecture FSB FSB
Number of links 1 1
Clock speed 800 MHz 800 MHz

details

Pentium E5800  vs
4 661 
Architecture x86-64 x86-64
Threads 2 2
L2 cache 2 MB 2 MB
L2 cache per core 1 MB/core 2 MB/core
Manufacture process 45 nm 65 nm
Transistor count 228,000,000 188,000,000
Max CPUs 1 1
Clock multiplier 16 18
Voltage range 0.85 - 1.36V 1.2 - 1.34V
Operating temperature Unknown - 74.1°C Unknown - 1°C

overclocking

Overclocked clock speed 4.17 GHz 4.55 GHz
Overclocked clock speed (Water) 4.34 GHz 5.04 GHz
Overclocked clock speed (Air) 4.17 GHz 4.55 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 Pentium E5800
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Intel Pentium 4 661
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