I don't have particularly big prints in mind. I thought if they look good enough for 24/27 inch 1080/1440 monitor, they ought to suffice for a print of similar size. Not a big expert, me
check the dpi of your monitor. you'll want to consider that the pixel density of your monitor is not the same as a print. I printed six megapixel images at 8x10 inches and you could probably in with lower res at that size. I would be surprised to find that a 16x20 would work though.