Michael, DG0OPK has been doing a lot of experimenting with running Gqrx on various ARM boards. In this video below, he shows gqrx running on the latest Odroid C2 from Hardkernel, which has a 64 bit, 2 GHz quad-core processor.
What is interesting to note is that he runs gqrx using the Airspy R2 at 10 Msps sample rate, and 16k FFT at 30 frames per second.
Indeed, the Odroid C2 looks like a very powerful board.
