The quick awnser is no.
Even though both 1080i and 1080p have the same ammount of pixels 1920x1080, the images in an 1080i are in a interlaced format (like the old tube based tv also knowen as CRT's) . 1080i sources get "painted" on the screen sequentially: the odd-numbered lines of resolution appear on your screen first, followed by the even-numbered lines--all within 1/30 of a second. Progresive-scan formats such as 480p, 720p, and 1080p convey all of the lines of resolution sequentially in a single pass, which makes for a smoother, cleaner image, especially with sports and other motion-intensive content. Even though plasma and LCD flat-panel's, are inherently progressive in nature, when the incoming source is interlaced, as 1080i is, they convert it to progressive scan for display but it still wont be as fast as 1080p for those action movies and video games!
Hope this helps you out
