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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 1 MB 6x more l2 cache; more data can be stored in the l2 cache for quick access later
Much more l2 cache per core 3 MB/core vs 0.5 MB/core 6x more l2 cache per core
Much better overclocked clock speed (Air) 4.22 GHz vs 3.8 GHz More than 10% better overclocked clock speed (Air)
Higher Maximum operating temperature 72.4 °C vs 70 °C Around 5% higher Maximum operating temperature
Significantly better overclocked clock speed (Water) 4.23 GHz vs 3.8 GHz More than 10% better overclocked clock speed (Water)
Front view of AMD PRO A A4 A4 PRO-7300B

Reasons to consider the
AMD PRO A A4 A4 PRO-7300B

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Much higher clock speed 3.8 GHz vs 3 GHz More than 25% higher clock speed
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

Benchmarks Real world tests of Core2 Duo E8400 vs PRO A A4 A4 PRO-7300B

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Core2 Duo E8400  vs
PRO A A4 A4 PRO-7300B 
Clock speed 3 GHz 3.8 GHz
Cores Dual core Dual core

features

Has virtualization support Yes Yes
Instruction set extensions
SSE2
MMX
AVX
SSE3
SSE
SSE4.1
FMA4
Supplemental SSE3
AES

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 1.98 pt/W
Typical power consumption 52.81W 52.81W

details

Core2 Duo E8400  vs
PRO A A4 A4 PRO-7300B 
Threads 2 2
L2 cache 6 MB 1 MB
L2 cache per core 3 MB/core 0.5 MB/core
Manufacture process 45 nm 32 nm
Operating temperature Unknown - 72.4°C Unknown - 70°C

overclocking

Overclocked clock speed 4.22 GHz 3.8 GHz
Overclocked clock speed (Water) 4.23 GHz 3.8 GHz
Overclocked clock speed (Air) 4.22 GHz 3.8 GHz

integrated graphics

GPU None GPU
Label N/A Radeon™ HD 8470D
Latest DirectX N/A 11.0
GPU clock speed N/A 800 MHz
Intel Core2 Duo E8400
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AMD PRO A A4 A4 PRO-7300B
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