MAX10 Single Supply and Dual Supply Differences

Single power supply devices do have internal regulator ; which means externally(board level) you have to design one power supply. But tradeoff here is single power supply is meant forless performance compare to dual.

Whereas dual power supply requires two power supply externally connect to the device.

Here is the power management userguide link, can you refer the same ?

https://www.intel.com/content/dam/www/programmable/us/en/pdfs/literature/hb/max-10/ug_m10_pwr.pdf