Raspberry Pi 1B vs Pi 2 B

Raspberry Pi 2 B is just a Pi v1 with more power.

Comparison of some other cool (and older) boards: http://techwatch.keeward.com/geeks-and-nerds/arduino-vs-raspberry-pi-vs-cubieboard-vs-gooseberry-vs-apc-rock-vs-olinuxino-vs-hackberry-a10/