Geek $15 Pine A64 is trying to be a faster, 64-bit Raspberry Pi Geek Today, amazingly, you can buy a computer for $8 or less. You actually have a choice of two: the Chip or the Raspberry Pi Zero. They're great 32-bit boards, but what if you want 64-bit support?
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$15 Pine A64 is trying to be a faster, 64-bit Raspberry Pi – Geek
$199 Gizmo Board is High-Powered Raspberry Pi Alternative EdSurge (blog) At $199, it's a steep price to pay, especially considering that the most expensive version of the Raspberry Pi is only $35. However, the Gizmo boasts more raw horsepower, SATA connectivity, uses the OpenCL API for GPU processing–all while retaining …
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$199 Gizmo Board is High-Powered Raspberry Pi Alternative – EdSurge (blog)