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Differences What are the advantages of each

Front view of Samsung Exynos 5 Octa

Reasons to consider the
Samsung Exynos 5 Octa

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Much newer manufacturing process 28 nm vs 65 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
More cores 8 vs 2 6 more cores; run more applications at once
More threads 8 vs 2 6 more threads
Front view of AMD Athlon X2 65

Reasons to consider the
AMD Athlon X2 65

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More advanced architecture x86-64 vs ARM A 64-bit architecture allows more RAM to be installed and accessed by the processor
Higher clock speed 2.1 GHz vs 1.6 GHz More than 30% higher clock speed
More l2 cache 1 MB vs 0.5 MB 2x more l2 cache; more data can be stored in the l2 cache for quick access later
Significantly more l2 cache per core 0.5 MB/core vs 0.06 MB/core 8x more l2 cache per core
Better overclocked clock speed (Air) 2.21 GHz vs 1.92 GHz More than 15% better overclocked clock speed (Air)
Slightly better overclocked clock speed (Water) 2.1 GHz vs 1.9 GHz More than 10% better overclocked clock speed (Water)

Benchmarks Real world tests of Exynos 5 Octa vs Athlon X2 65

GeekBench

Specifications Full list of technical specs

summary

Exynos 5 Octa  vs
Athlon X2 65 
Clock speed 1.6 GHz 2.1 GHz
Cores Octa core Dual core

overclocking

Overclocked clock speed 1.92 GHz 2.21 GHz
Overclocked clock speed (Water) 1.9 GHz 2.1 GHz
Overclocked clock speed (Air) 1.92 GHz 2.21 GHz

power consumption

Typical power consumption N/A 28.44W

details

Exynos 5 Octa  vs
Athlon X2 65 
Architecture ARM x86-64
Threads 8 2
L2 cache 0.5 MB 1 MB
L2 cache per core 0.06 MB/core 0.5 MB/core
Manufacture process 28 nm 65 nm

integrated graphics

GPU GPU None
Latest DirectX 11.x N/A
GPU clock speed 528 MHz N/A
Samsung Exynos 5 Octa
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AMD Athlon X2 65
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