When comparing HummingBoard Gate vs Banana Pi, the Slant community recommends HummingBoard Gate for most people. In the question“What are the best single-board computers?” HummingBoard Gate is ranked 23rd while Banana Pi is ranked 48th. The most important reason people chose HummingBoard Gate is:
Since the HummingBoard Gate comes with different versions, including different CPU versions, it can also run the same software without any problem on any CPU regardless of the number of cores.
Specs
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Pros

Pro Same software runs on single to quad CPU without any problems
Since the HummingBoard Gate comes with different versions, including different CPU versions, it can also run the same software without any problem on any CPU regardless of the number of cores.
Pro Some models fit inside a Raspberry Pi case
HummingBoard-Pro and HummingBoard-Base fit inside a Raspberry Pi model B case (but be aware that many cases will block the IR).
Pro Extremely extendable
Hummingboard Gate has a native mikroBUS system which lets users attach any “click board” that’s compatible with MikroElektronika’s system. This way the board can be extended by adding motion sensors, wifi cards, physical buttons, temperature sensors, NFC or Bluetooth and much more.
Pro Can be used as a media streaming device
HummingBoard works really well with Kodi and can be turned into a media streaming device with ease.
Pro Selection of great operating systems
Hummingboard supports OpenELEC 5.0, GeexBox XBMC, Android and Debian officially, but it can also run ArchLinux, openSUSE and Fedora successfully.
Pro Official support for multiple Desktop-version Linux distros
Banana Pi officially supports Fedora, Arch, Lubuntu and openSUSE. It also can be used with Raspbian (Debian derivative) or Android.
Pro Additional keys for booting or shutting down
Pro SATA port
Pro Excellent compatibility with Raspberry Pi software
Other than having a port of Raspbian (the official OS for Raspberry Pi) available for use with full capabilities, Banana Pi can also use many applications that were originally written for Raspberry. One of these is WiringPi, a C/C++ library which gives easy access to Raspberry's I/O with a strong Arduino flavor. But that is just one example of the many open source projects being ported to Banana Pi.
Pro Onboard Wi-Fi
Most models have an onboard Wi-Fi.
Cons
Con Pretty expensive
Starting at $70, prices can go up to $235 depending on the model and the components that users choose to add to the board. For these prices it's rather expensive relative to other single board computers.
Con No built-in Wifi for the cheapest version
The cheapest version of the Humingboard Gate doesn't have a built-in Wifi card. You can either buy it separately as an add-on or you can buy a more expensive version of the Humingboard Gate which has a built-in Wifi card.
Con Bad software support
Con No off-the-shelf camera modules
The A20 chip that the Banana Pi uses lacks a true Camera Serial Interface implementation, instead it uses a parallel camera interface. The problem with this is that there are no off-the-shelf camera modules that support this and can connect to the Banana Pi, but it should be mentioned that the makers of Banana Pi have promised to create a camera module that is supported by it.
Con Does not fit most Raspberry Pi cases, even though it's where it clearly has gotten the inspiration from
The Banana Pi is pretty noticeable a Rapberry Pi lookalike and the name does not hide this information either. Unfortunately it's a bit larger than the Raspberry Pi, making it very hard to fit into most Raspberry Pi cases.
