ODROID-XU4: Much Better Performance Than The Raspberry Pi Plus USB3 & Gigabit Ethernet @ $60
The ODROID-XU4 performed very well in the 7-Zip compression test and almost matched the Jetson TX1 CPU performance.
Compile times for PHP came in between the TX1 and TX2 boards.
C-Ray ray-tracing also led to the XU4 performing between the TX1 and TX2 ARM development boards.
With not being too familiar with the XU4 up until receiving it, the performance potential out of this ARM SBC that can be found as low as ~$60 USD was quite surprising.