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Differences What are the advantages of each

Front view of Intel Pentium 4 661

Reasons to consider the
Intel Pentium 4 661

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Much higher clock speed 3.6 GHz vs 1.8 GHz 2x higher clock speed
Much better overclocked clock speed (Air) 4.55 GHz vs 3.21 GHz More than 40% better overclocked clock speed (Air)
Much better overclocked clock speed (Water) 5.04 GHz vs 3.6 GHz More than 40% better overclocked clock speed (Water)
Front view of Intel Core2 Duo E4300

Reasons to consider the
Intel Core2 Duo E4300

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Much higher Maximum operating temperature 61.4 °C vs 1 °C Around 61.5x higher Maximum operating temperature
More cores 2 vs 1 Twice as many cores; run more applications at once
Significantly lower typical power consumption 52.81W vs 69.88W Around 25% lower typical power consumption
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

Features Key features of the Pentium 4 661  vs Core2 Duo E4300 

clock speed

Pentium 4 661
3.6 GHz
Core2 Duo E4300
1.8 GHz

L2 cache

overclocked clock speed (air)

Pentium 4 661
4.55 GHz
Core2 Duo E4300
3.21 GHz

overclocked clock speed (water)

Pentium 4 661
5.04 GHz
Core2 Duo E4300
3.6 GHz

Specifications Full list of technical specs

summary

Pentium 4 661  vs
Core2 Duo E4300 
Clock speed 3.6 GHz 1.8 GHz
Cores Single core Dual core
Socket type
LGA 775

features

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

power consumption

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

bus

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

details

Pentium 4 661  vs
Core2 Duo E4300 
Architecture x86-64 x86-64
Threads 2 2
L2 cache 2 MB 2 MB
L2 cache per core 2 MB/core 1 MB/core
Manufacture process 65 nm 65 nm
Transistor count 188,000,000 167,000,000
Max CPUs 1 1
Clock multiplier 18 9
Voltage range 1.2 - 1.34V 0.85 - 1.5V
Operating temperature Unknown - 1°C Unknown - 61.4°C

overclocking

Overclocked clock speed 4.55 GHz 3.21 GHz
Overclocked clock speed (Water) 5.04 GHz 3.6 GHz
Overclocked clock speed (Air) 4.55 GHz 3.21 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 4 661
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Intel Core2 Duo E4300
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