I've bought an Everdrive cardridge for Megadrive. I don't own a megadrive yet, and I see there are different versions, especially the version 1 and version 2. It seems Megadrive 2 no longer contains the original audio chip YM2612 but they use an all in one ASIC (Sega 315-5660 or Sega 315-5960) which does the z80 cpu and the audio as well:
In this later case, an FPGA could do the same right?
Do they sound similar? Which one do you think is better? I'd say the version 1 is more genuine, but maybe I'm wrong...