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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 more l2 cache 6 MB vs 0.5 MB 12x more l2 cache; more data can be stored in the l2 cache for quick access later
Much better PassMark score 2,160 vs 404 More than 5.2x better PassMark score
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
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
Much better performance per watt 1.83 pt/W vs 0.25 pt/W Around 7.2x better performance per watt
Has virtualization support Yes vs No Somewhat common; Boosts performance of virtual machines
Supports trusted computing Yes vs No Somewhat common; Allows for safer, more reliable computing
Much more l2 cache per core 3 MB/core vs 0.5 MB/core 6x more l2 cache per core
Much higher Maximum operating temperature 72.4 °C vs 64.4 °C More than 10% higher Maximum operating temperature
Much better overclocked clock speed (Water) 4.23 GHz vs 3.6 GHz Around 20% better overclocked clock speed (Water)
Newer Jan, 2008 vs Jan, 2007 Release date a year later
Front view of Intel Celeron D 365

Reasons to consider the
Intel Celeron D 365

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Much higher clock speed 3.6 GHz vs 3 GHz More than 20% higher clock speed
Much better overclocked clock speed (Air) 4.75 GHz vs 4.22 GHz Around 15% better overclocked clock speed (Air)

Benchmarks Real world tests of Core2 Duo E8400 vs Celeron D 365

PassMark Data courtesy Passmark

Specifications Full list of technical specs

summary

Core2 Duo E8400  vs
Celeron D 365 
Clock speed 3 GHz 3.6 GHz
Cores Dual core Single core
Socket type
LGA 775

features

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

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
Performance per watt 1.83 pt/W 0.25 pt/W
Typical power consumption 52.81W 52.81W

bus

Architecture FSB FSB
Number of links 1 1
Clock speed 1,333 MHz 533 MHz

details

Core2 Duo E8400  vs
Celeron D 365 
Architecture x86-64 x86-64
Threads 2 1
L2 cache 6 MB 0.5 MB
L2 cache per core 3 MB/core 0.5 MB/core
Manufacture process 45 nm 65 nm
Transistor count 410,000,000 188,000,000
Max CPUs 1 1
Clock multiplier 9 27
Voltage range 0.85 - 1.36V 1.25 - 1.32V
Operating temperature Unknown - 72.4°C Unknown - 64.4°C

overclocking

Overclocked clock speed 4.22 GHz 4.75 GHz
Overclocked clock speed (Water) 4.23 GHz 3.6 GHz
Overclocked clock speed (Air) 4.22 GHz 4.75 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 Core2 Duo E8400
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Intel Celeron D 365
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