What frame-rate does your computer play 1080p video?

At what frame-rate do the Intel iMacs play 1080p videos? You can test this by doing a Get-Info while the clip is playing. The info window will show how many fps (frames per second) of video is being displayed.
Here's a link to some video clips, be sure to choose 1080p (not 720p or 480p):
http://www.apple.com/quicktime/guide/hd/
-thanks

My 17" Intel Core Duo 1.83 has no trouble playing the 1080 p at 24 fps, it ranges from 23.5 to 24.5 depending on the scene etc. Processor cores running at 60%.
The lower resolution 1080p (it said 1080p but was 1440 by 1080) Didn't even stutter (stayed at 24 fps) when I opened MS Word in Rosetta mode. Even opening Excel, FireFox, iTunes, and iPhoto at the same time and it dropped to 23 fps for about half a second and rebounded to 25.5 fps before settling back at 24 fps.
The true 1080p (1920x1080) dropped to 18 or 20 fps when other applications were opened. I should point out that these tests were run when the video was still downloading. And in some of the very high speed scenes it would drop to 18 or 20 frames/second for a short time (hardly noticeable). Other applications were running during this time as well. This was the 1080p version of http://www.apple.com/quicktime/guide/hd/higherground.html
I should point out in 1080p the window is too large to fit on the screen of the 17" monitor. For the test I ran it with the image partially off the screen so it is running at native resolution (however it runs just as fast at any window size). 1080p is 1920 x 1080, so I imagine this is why the 20" is recommended for 1080p. If you have QuickTime Pro you can watch it full screen mode.
Message was edited by: viking79

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