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22. 1080i or 720p?

Submitted by Testing on Mon, 09/07/2015 - 07:35

As mentioned before, these specifications refer to the amounts of horizontal lines and the letter designation thereafter refer to the way those lines are scanned. Both are within the HD-domain and considered standards for HD signals. So which is better?

Interlaced scanning (i) - 1080i (1920 x 1080) delivers 2 million pixels 30 times per second.

Progressive scanning (p) - 720p (1280 x 720) delivers 1 million pixels 60 times per second.

This leaves us with a 6-of-one and half-dozen-of-the-other scenario. Both systems will coexist as there are pros and cons to both.