SMPTE UHDTV standard The standard defines the following characteristics for these systems: A resolution of 3840 × 2160 (UHDTV1) or 7680 × 4320 (UHDTV2) Square (1∶1) pixels, for an overall image aspect ratio of 16∶9. A framerate of 23.976, 24, 25, 29.97, 30, 50, 59.94, 60, 100, 119.88, or 120 Hz with progressive scan.