We measured it with a MacBook Pro with M3 Pro sending to an iMac 24‑inch with M1 over a Thunderbolt 4 cable, at 4480 × 2520 and 60 frames per second, using preproduction software, in October 2026. With a moving picture the median was 8.7 to 9.1 ms. Scrolling text or pictures, moving a window and panning a full-screen picture measured 9.9 to 10.8 ms.

What the figure leaves out

  • As on any display, the iMac shows a new frame at its next refresh, which adds up to 16.7 ms at 60 Hz.
  • A frame after a pause, such as the first change when you start typing, takes longer: about 25 ms.

Over Wi‑Fi

A compressed picture takes longer. On the same two Macs, Medium over Wi‑Fi measured about 37 ms.

The statistics line in the menu shows the delay on your own Macs while you use them. The statistics line