A stock Amiga 500 with an RGBtoHDMI vs a ULX3S MiniMig showing the performance difference between the two. Audio is coming from the MiniMig's DAC.
The ULX3S is a credit card sized FPGA development board. It runs the equivalent of a 68000 at 112.5MHz. The source for the firmware used can be found at https://github.com/LinuxJedi/Minimig_...
Video aspect is off due to the way I captured it. This is more a comparison of performance.