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Differences What are the advantages of each

Front view of Intel Pentium 4 505

Reasons to consider the
Intel Pentium 4 505

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Much higher Maximum operating temperature 67.7 °C vs 60.1 °C Around 15% higher Maximum operating temperature
Much better overclocked clock speed (Air) 3.74 GHz vs 3.35 GHz More than 10% better overclocked clock speed (Air)
Front view of Intel Core2 Duo E6700

Reasons to consider the
Intel Core2 Duo E6700

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Much more l2 cache 4 MB vs 1 MB 4x more l2 cache; more data can be stored in the l2 cache for quick access later
Much newer manufacturing process 65 nm vs 90 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
More threads 2 vs 1 Twice as many threads
Supports dynamic frequency scaling Yes vs No Somewhat common; Allows for maximum performance when needed, while conserving power and minimizing heat production when not needed
Has virtualization support Yes vs No Somewhat common; Boosts performance of virtual machines
Significantly lower typical power consumption 52.81W vs 68.25W Around 25% lower typical power consumption
Much better overclocked clock speed (Water) 3.6 GHz vs 2.67 GHz Around 35% better overclocked clock speed (Water)
Significantly lower annual home energy cost 15.66 $/year vs 20.24 $/year Around 25% lower annual home energy cost
Significantly lower annual commercial energy cost 56.94 $/year vs 73.58 $/year Around 25% lower annual commercial energy cost

Features Key features of the Pentium 4 505  vs Core2 Duo E6700 

clock speed

Pentium 4 505
2.66 GHz
Core2 Duo E6700
2.66 GHz

L2 cache

overclocked clock speed (air)

Pentium 4 505
3.74 GHz
Core2 Duo E6700
3.35 GHz

overclocked clock speed (water)

Pentium 4 505
2.67 GHz
Core2 Duo E6700
3.6 GHz

Specifications Full list of technical specs

summary

Pentium 4 505  vs
Core2 Duo E6700 
Clock speed 2.66 GHz 2.66 GHz
Cores Single core Dual core
Socket type
LGA 775

features

Has a NX bit Yes Yes
Has virtualization support No Yes
Supports dynamic frequency scaling No Yes

overclocking

Overclocked clock speed 3.74 GHz 3.35 GHz
Overclocked clock speed (Water) 2.67 GHz 3.6 GHz
Overclocked clock speed (Air) 3.74 GHz 3.35 GHz

power consumption

TDP 84W 65W
Annual home energy cost 20.24 $/year 15.66 $/year
Annual commercial energy cost 73.58 $/year 56.94 $/year
Typical power consumption 68.25W 52.81W

details

Pentium 4 505  vs
Core2 Duo E6700 
Architecture x86-64 x86-64
Threads 1 2
L2 cache 1 MB 4 MB
L2 cache per core 1 MB/core 2 MB/core
Manufacture process 90 nm 65 nm
Transistor count 125,000,000 291,000,000
Max CPUs 1 1
Clock multiplier 20 10
Voltage range 1.25 - 1.39V 0.85 - 1.5V
Operating temperature Unknown - 67.7°C Unknown - 60.1°C

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

bus

Architecture FSB FSB
Number of links 1 1
Clock speed 533 MHz 1,066 MHz
Intel Pentium 4 505
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Intel Core2 Duo E6700
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