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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 higher clock speed 3 GHz vs 1.45 GHz More than 2x higher clock speed
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
Front view of AMD Sempron Sempron™ 2650

Reasons to consider the
AMD Sempron Sempron™ 2650

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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 28 nm vs 45 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much higher Maximum operating temperature 90 °C vs 72.4 °C Around 25% higher Maximum operating temperature
Much lower typical power consumption 20.31W vs 52.81W 2.6x lower typical power consumption
Much lower annual home energy cost 6.02 $/year vs 15.66 $/year 2.6x lower annual home energy cost
Much lower annual commercial energy cost 21.9 $/year vs 56.94 $/year 2.6x lower annual commercial energy cost

Features Key features of the Core2 Duo E8400  vs Sempron Sempron™ 2650 

Specifications Full list of technical specs

summary

Core2 Duo E8400  vs
Sempron Sempron™ 2650 
Clock speed 3 GHz 1.45 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

details

Core2 Duo E8400  vs
Sempron Sempron™ 2650 
Threads 2 2
L2 cache 6 MB 1 MB
L2 cache per core 3 MB/core 0.5 MB/core
Manufacture process 45 nm 28 nm
Operating temperature Unknown - 72.4°C Unknown - 90°C

integrated graphics

GPU None GPU
Label N/A Radeon™ R3
Latest DirectX N/A 12.0
GPU clock speed N/A 400 MHz

power consumption

TDP 65W 25W
Annual home energy cost 15.66 $/year 6.02 $/year
Annual commercial energy cost 56.94 $/year 21.9 $/year
Typical power consumption 52.81W 20.31W
Intel Core2 Duo E8400
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AMD Sempron Sempron™ 2650
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