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Differences What are the advantages of each

Front view of Intel Core2 Duo E8400

Reasons to consider the
Intel Core2 Duo E8400

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Much higher clock speed 3 GHz vs 1.6 GHz More than 85% higher clock speed
Much better overclocked clock speed (Air) 4.22 GHz vs 1.6 GHz Around 2.8x better overclocked clock speed (Air)
Much newer manufacturing process 45 nm vs 65 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much better overclocked clock speed (Water) 4.23 GHz vs 1.6 GHz Around 2.8x better overclocked clock speed (Water)
Front view of Intel Core2 Duo E4200

Reasons to consider the
Intel Core2 Duo E4200

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CPUBoss is not aware of any important advantages of the E4200 vs the E8400.

Features Key features of the Core2 Duo E8400  vs E4200 

clock speed

L2 cache

overclocked clock speed (air)

Core2 Duo E8400
4.22 GHz
Core2 Duo E4200
1.6 GHz

overclocked clock speed (water)

Core2 Duo E8400
4.23 GHz
Core2 Duo E4200
1.6 GHz

Specifications Full list of technical specs

summary

Core2 Duo E8400  vs
E4200 
Clock speed 3 GHz 1.6 GHz
Cores Dual core Dual core
Socket type
LGA 775

features

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

bus

Clock speed 1,333 MHz 800 MHz

details

Core2 Duo E8400  vs
E4200 
Threads 2 2
L2 cache 6 MB 2 MB
L2 cache per core 3 MB/core 1 MB/core
Manufacture process 45 nm 65 nm
Max CPUs 1 1

overclocking

Overclocked clock speed 4.22 GHz 1.6 GHz
Overclocked clock speed (Water) 4.23 GHz 1.6 GHz
Overclocked clock speed (Air) 4.22 GHz 1.6 GHz

power consumption

Typical power consumption 52.81W N/A
Intel Core2 Duo E8400
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Intel Core2 Duo E4200
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