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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 2 MB 3x more l2 cache; more data can be stored in the l2 cache for quick access later
Significantly higher clock speed 3 GHz vs 2 GHz 50% higher clock speed
Much better geekbench 2 (32-bit) score 2,826 vs 1,800 More than 55% better geekbench 2 (32-bit) score
Much more l2 cache per core 3 MB/core vs 1 MB/core 3x more l2 cache per core
Much better overclocked clock speed (Air) 4.22 GHz vs 2 GHz More than 2x better overclocked clock speed (Air)
Better PassMark (Single core) score 1,251 vs 655 More than 90% better PassMark (Single core) score
Much better overclocked clock speed (Water) 4.23 GHz vs 2 GHz More than 2x better overclocked clock speed (Water)
Front view of AMD A4 3320M

Reasons to consider the
AMD A4 3320M

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Has a built-in GPU Yes vs No Somewhat common; A separate graphics adapter is not required
Much newer manufacturing process 32 nm vs 45 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Significantly lower typical power consumption 28.44W vs 52.81W More than 45% lower typical power consumption
Much higher Maximum operating temperature 100 °C vs 72.4 °C Around 40% higher Maximum operating temperature
Newer Dec, 2011 vs Jan, 2008 Release date over 3 years later
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 E8400 vs A4 3320M

GeekBench 3 (Multi-core) Data courtesy Primate Labs

A4 3320M
1,984.5

GeekBench 3 (Single core) Data courtesy Primate Labs

A4 3320M
1,065.5

GeekBench 3 (AES single core) Data courtesy Primate Labs

Core2 Duo E8400
128,000 MB/s
A4 3320M
84.3 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 E8400  vs
A4 3320M 
Clock speed 3 GHz 2 GHz
Cores Dual core Dual core

features

Has a NX bit Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE4a
SSE2
MMX
SSE3
SSE
AMD64
SSE4.1
AMD-V
Supplemental SSE3
Supports dynamic frequency scaling Yes Yes

integrated graphics

GPU None GPU
Label N/A Radeon™ HD 6480G
Latest DirectX N/A 11.0
GPU clock speed N/A 444 MHz

details

Core2 Duo E8400  vs
A4 3320M 
Architecture x86-64 x86-64
Threads 2 2
L2 cache 6 MB 2 MB
L2 cache per core 3 MB/core 1 MB/core
Manufacture process 45 nm 32 nm
Transistor count 410,000,000 1,450,000,000
Max CPUs 1 1
Clock multiplier 9 13
Voltage range 0.85 - 1.36V 0.91 - 1.41V
Operating temperature Unknown - 72.4°C Unknown - 100°C

overclocking

Overclocked clock speed 4.22 GHz 2 GHz
Overclocked clock speed (Water) 4.23 GHz 2 GHz
Overclocked clock speed (Air) 4.22 GHz 2 GHz

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 1.83 pt/W 1.79 pt/W
Typical power consumption 52.81W 28.44W
Intel Core2 Duo E8400
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AMD A4 3320M
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