"1080p provides the sharpest, most lifelike picture possible." "1080p combines high resolution with a high frame rate, so you see more detail from second to second." This marketing copy is largely accurate. 1080p can be significantly better that 1080i, 720p, 480p or 480i. But, (thereâ€™s always a "but") there are qualifications. The most obvious qualification: Is this performance improvement manifest under real world viewing conditions?\n\n\nDiscuss "1080p and the Acuity of Human Vision" here. Read the article.