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Differences What are the advantages of each

Front view of Intel Core2 Duo E8500

Reasons to consider the
Intel Core2 Duo E8500

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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 higher clock speed 3.16 GHz vs 1.8 GHz More than 75% higher clock speed
Much better geekbench 2 (32-bit) score 2,970 vs 560 More than 5.2x better geekbench 2 (32-bit) score
Much more l2 cache per core 3 MB/core vs 0.5 MB/core 6x 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) 4.46 GHz vs 1.8 GHz Around 2.5x better overclocked clock speed (Air)
Much better PassMark (Single core) score 1,318 vs 276 More than 4.8x better PassMark (Single core) score
Supports trusted computing Yes vs No Somewhat common; Allows for safer, more reliable computing
Better PassMark score 2,291 vs 343 Around 6.8x better PassMark score
Better performance per dollar 0.63 pt/$ vs 0.45 pt/$ Around 40% better performance per dollar
Much better overclocked clock speed (Water) 4.42 GHz vs 1.8 GHz Around 2.5x better overclocked clock speed (Water)
More cores 2 vs 1 Twice as many cores; run more applications at once
Front view of Intel Atom D425

Reasons to consider the
Intel Atom D425

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Has a built-in GPU Yes vs No Somewhat common; A separate graphics adapter is not required
Much lower typical power consumption 8.13W vs 52.81W 6.5x lower typical power consumption
Newer Jun, 2010 vs Jan, 2008 Release date over 2 years later
Much lower annual home energy cost 2.41 $/year vs 15.66 $/year 6.5x lower annual home energy cost
Much lower annual commercial energy cost 8.76 $/year vs 56.94 $/year 6.5x lower annual commercial energy cost

Benchmarks Real world tests of Core2 Duo E8500 vs Atom D425

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 E8500
129,700 MB/s
Atom D425
28.6 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

GeekBench

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Core2 Duo E8500  vs
Atom D425 
Clock speed 3.16 GHz 1.8 GHz
Cores Dual core Single core

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 10W
Annual home energy cost 15.66 $/year 2.41 $/year
Annual commercial energy cost 56.94 $/year 8.76 $/year
Performance per watt 1.93 pt/W 1.89 pt/W
Typical power consumption 52.81W 8.13W

details

Core2 Duo E8500  vs
Atom D425 
Architecture x86-64 x86-64
Threads 2 2
L2 cache 6 MB 0.5 MB
L2 cache per core 3 MB/core 0.5 MB/core
Manufacture process 45 nm 45 nm
Transistor count 410,000,000 123,000,000
Max CPUs 1 1
Voltage range 0.85 - 1.36V 0.8 - 1.18V

overclocking

Overclocked clock speed 4.46 GHz 1.8 GHz
Overclocked clock speed (Water) 4.42 GHz 1.8 GHz
Overclocked clock speed (Air) 4.46 GHz 1.8 GHz

integrated graphics

GPU None GPU
Label N/A Integrated

bus

Architecture FSB DMI
Number of links 1 1
Intel Core2 Duo E8500
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Intel Atom D425
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