Original text on this page prior to its migration to StructuredDiscussions:
Nearest: Fills entire screen without blurring, but usually results in unevenly sized pixels unless an integer scale is used, see Pixel-Perfect.
Linear: Generally blurrier than nearest, but this avoids uneven pixels and can help avoid a jaggy appearance for stuff like line art.
Cubic: Less pixelated than linear, but can suffer from minor shadowing around edges, like SMAA.
Pixel-art scaling algorithms: see Wikipedia.
--SirYodaJedi (talk) 17:19, 5 November 2018 (CET)