I have QGIS 3.10.7 and QGIS 2.12.3. I am loading the same ASCII (.asc) file into both versions of QGIS. QGIS 3.10.7 says the values in the ASCII file range from 186.573 - 1458.33. QGIS 2.12.3 says the values range from 267.966 - 1142.93.
ArcMap says the range is 549.979 - 1462.79.
Do different programs interpret ASCII files differently? If I were to use SAGA tools to calculate something like slope/aspect/topographic position index using the different programs, I assume the results would be different in absolute terms, but would they be the same/similar in relative terms?