I assume 773 is some sort of burst frequency? If yes using 773MHz as a metric you get 198 GFLOPs without calculating SFU FLOPs and with the latter at 210 GFLOPs. Or times easier: http://gfxbench.com/device.jsp?benchmark=gfx30&os=Android&api=gl&D=Samsung Galaxy S6 (SM-G920)
Colour me impressed if that thing doesn't throttle an inch; it's a smartphone after all.
Colour me impressed if that thing doesn't throttle an inch; it's a smartphone after all.