Yes that helps. So at least we now can make 2 reasonable assumptions.
1. The Marantz AV7702MkII has the AK4458 or the TI 1795, more likely the AK4458 because that's in the SR7010 and the AV7702MkII was launched at around the same time.
2. The Onkyo 7030 has the WM8718 based on a review linked below as well as the published specs (SNR)
https://www.amazon.com/review/RZN7NUL44AUKX
Based on above assumptions, the AV7702MkII has a better DAC chip (better specs). That does not mean the 7702MkII will sound better, worse or same as there are many other factors.