No samples, but tests I did last weekend for landscape shots showed pretty much no noise up to ISO1600 and from then on, some noise start to be visible on underexposed areas (shadows) but most of the details retained all the way up to ISO12800. Quite crazy, really. 25k all the way 102k ISO, you'll see some loss of details. So I've started to dial in an auto ISO up to 1600 for landscape shots when I dont have atripod with me, and for standard less important grab shots I would go up to auto ISO 12800.