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So, my gameplay is a little bit pokey at the highest resolution/detail levels, and I'd like to tweak things to get better performance, but it's difficult without being able to objectively measure my framerate. How can I display it?

(This is on a Mac, so using FRAPS is out.)

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2 Answers 2

up vote 35 down vote accepted

On Windows, you can press Control+R to toggle framerate display. On mac you can use Command+R

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Ctrl+R does the trick! –  Brant May 16 '12 at 1:40
Note that with the current build there is a known bug and the game displays the framerate as 0 fps: us.battle.net/d3/en/forum/topic/5884818685 –  Will Bickford Aug 3 '12 at 6:32

command R also works for mac for showing FPS

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