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A53 SoC, new RPi4 with A72 is going to run circles around this one.

Unless you are doing disk io and most of your CPU cycles spent on it.

Software support is lacking in this device. No OpenGL, no retro gaming with the March 2019 images. Are you configuring yours differently?

Old and new Mali GPUs just got mainline kernel support: https://news.ycombinator.com/item?id=19908741

The one downside to OrangePi systems is that they use a (semi-) non-standard DC connector (1.8mm I think, definitely not 2.1mm or 2.5mm though).

I think this is to avoid the plentiful 12v adapters that use those sizes, as you could fry the board with a bad PSU. The 5v adapters that do use those more standard sizes are generally 500mA or 1A, which is enough to (unreliably) boot and run the board.