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Differences What are the advantages of each

Front view of Intel Core2 Duo E8200

Reasons to consider the
Intel Core2 Duo E8200

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Much more l2 cache 6 MB vs 1 MB 6x more l2 cache; more data can be stored in the l2 cache for quick access later
Significantly higher clock speed 2.66 GHz vs 1.6 GHz More than 65% higher clock speed
Much better geekbench 2 (32-bit) score 2,514 vs 739 Around 3.5x better geekbench 2 (32-bit) score
Much newer manufacturing process 45 nm vs 65 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much more l2 cache per core 3 MB/core vs 1 MB/core 3x more l2 cache per core
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
Much better overclocked clock speed (Air) 4 GHz vs 2.02 GHz Around 2x better overclocked clock speed (Air)
Supports trusted computing Yes vs No Somewhat common; Allows for safer, more reliable computing
Better geekbench 3 single core score 1,460 vs 814 Around 80% better geekbench 3 single core score
Higher Maximum operating temperature 72.4 °C vs 60.4 °C Around 20% higher Maximum operating temperature
More cores 2 vs 1 Twice as many cores; run more applications at once
Better PassMark score 1,885 vs 452 Around 4.2x better PassMark score
Newer Jan, 2008 vs Apr, 2007 Release date 9 months later
Better overclocked clock speed (Water) 4.08 GHz vs 3.38 GHz More than 20% better overclocked clock speed (Water)
Front view of Intel Celeron M 420

Reasons to consider the
Intel Celeron M 420

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Much better performance per dollar 1.57 pt/$ vs 0.64 pt/$ Around 2.5x better performance per dollar
Significantly lower typical power consumption 28.44W vs 52.81W More than 45% lower typical power consumption
Significantly lower annual home energy cost 8.43 $/year vs 15.66 $/year More than 45% lower annual home energy cost
Significantly lower annual commercial energy cost 30.66 $/year vs 56.94 $/year More than 45% lower annual commercial energy cost

Benchmarks Real world tests of Core2 Duo E8200 vs Celeron M 420

GeekBench 3 (Multi-core) Data courtesy Primate Labs

GeekBench 3 (Single core) Data courtesy Primate Labs

GeekBench 3 (AES single core) Data courtesy Primate Labs

Core2 Duo E8200
113,900 MB/s
Celeron M 420
66,700 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

GeekBench (64-bit) Data courtesy Primate Labs

GeekBench

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Core2 Duo E8200  vs
Celeron M 420 
Clock speed 2.66 GHz 1.6 GHz
Cores Dual core Single core
Socket type
LGA 775
478

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 35W
Annual home energy cost 15.66 $/year 8.43 $/year
Annual commercial energy cost 56.94 $/year 30.66 $/year
Performance per watt 1.64 pt/W 1.57 pt/W
Typical power consumption 52.81W 28.44W

bus

Architecture FSB FSB
Number of links 1 1
Clock speed 1,333 MHz 800 MHz

details

Core2 Duo E8200  vs
Celeron M 420 
Architecture x86-64 x86-64
Threads 2 1
L2 cache 6 MB 1 MB
L2 cache per core 3 MB/core 1 MB/core
Manufacture process 45 nm 65 nm
Transistor count 410,000,000 105,000,000
Max CPUs 1 1
Clock multiplier 8 8
Voltage range 0.85 - 1.36V 1 - 1.34V
Operating temperature Unknown - 72.4°C Unknown - 60.4°C

overclocking

Overclocked clock speed 4 GHz 2.02 GHz
Overclocked clock speed (Water) 4.08 GHz 3.38 GHz
Overclocked clock speed (Air) 4 GHz 2.02 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 E8200
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Intel Celeron M 420
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