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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 1.65 GHz More than 80% higher clock speed
Much better overclocked clock speed (Air) 4.22 GHz vs 1.65 GHz More than 2.5x better overclocked clock speed (Air)
Significantly better PassMark (Single core) score 1,251 vs 627 Around 2x better PassMark (Single core) score
Much better overclocked clock speed (Water) 4.23 GHz vs 1.65 GHz More than 2.5x better overclocked clock speed (Water)
Slightly better PassMark score 2,160 vs 1,106 More than 95% better PassMark score
Front view of AMD G-Series GX-217GA

Reasons to consider the
AMD G-Series GX-217GA

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Much newer manufacturing process 28 nm vs 45 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Has a built-in GPU Yes vs No Somewhat common; A separate graphics adapter is not required
Much lower typical power consumption 12.19W vs 52.81W 4.3x lower typical power consumption
Newer Jun, 2013 vs Jan, 2008 Release date over 5 years later
Better performance per watt 3.09 pt/W vs 1.83 pt/W Around 70% better performance per watt
Much lower annual home energy cost 3.61 $/year vs 15.66 $/year 4.3x lower annual home energy cost
Much lower annual commercial energy cost 13.14 $/year vs 56.94 $/year 4.3x lower annual commercial energy cost

Benchmarks Real world tests of Core2 Duo E8400 vs G-Series GX-217GA

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 E8400
128,000 MB/s
G-Series GX-217GA
838.8 MB/s

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Core2 Duo E8400  vs
G-Series GX-217GA 
Clock speed 3 GHz 1.65 GHz
Cores Dual core Dual core

features

Has a NX bit Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE4a
SSE2
F16C
MMX
AVX
SSE3
SSE
BMI1
AMD64
SSE4.1
SSE4.2
AMD-V
Supplemental SSE3
AES
Supports dynamic frequency scaling Yes Yes

details

Core2 Duo E8400  vs
G-Series GX-217GA 
Manufacture process 45 nm 28 nm

overclocking

Overclocked clock speed 4.22 GHz 1.65 GHz
Overclocked clock speed (Water) 4.23 GHz 1.65 GHz
Overclocked clock speed (Air) 4.22 GHz 1.65 GHz

integrated graphics

GPU None GPU
Label N/A AMD Radeon HD 8280E
GPU clock speed N/A 450 MHz

power consumption

TDP 65W 15W
Annual home energy cost 15.66 $/year 3.61 $/year
Annual commercial energy cost 56.94 $/year 13.14 $/year
Performance per watt 1.83 pt/W 3.09 pt/W
Typical power consumption 52.81W 12.19W
Intel Core2 Duo E8400
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AMD G-Series GX-217GA
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