then i got a question is 720p better than 1080i? or does it depend on the game?
qmoney88
It depends more on the tv, sometimes the game how it outputs 1080i. If again you have a LCD with the common resolution of 1366*768 (you can call that 768p) then choosing 1080i might not have a huge difference over 720p. The tv has to deinterlace and downscale it to 768p, and that can vary in quality from tv to tv. It's possilbe if it does it well to pull out more detail from your screen by using all of 768p compared to giving it lower 720p that it has to upscale to 768p. Just the upscaling could soften the 720p from the interpolation. While downscaling usually results in sharper image (if it has good processing). But then a fast game with a lot of twitch motion might look sharper in those moments in 720p. So in the end, you understand you can't fully show 1080i, but the conversion process might look a bit better, maybe even reduce jaggies. You just have to test for yourself as again it depends on the tv and game. And some games do run at 60fps at 1080p like Ninja Gaiden, but the nature of 1080i runs at 30fps. So any possible benefit 1080i has downscaled to 768p has a con of only 30fps, while 720p can have 60fps.
Example. When I had a my 55inch 768p tv I tried 1080i on the PS3 with Full Auto 2. Even in fast motion it seemed sharper than ever. (This tv was list $3500 2 years ago, it was sony's top model before 1080p so it better process 1080i well). Though, the 1080i seemed to not run as smooth compared to when it was 720p, but then 720p you could make out pixels more often since they were not a smoothed or blended togethor the way the downscaling did to 1080i.
Then came Gears of War on the 360, which was suppose to run at 1080i (or it could have been upscaling to 1080i). But this had a horrible effect on the same tv. Suddenly the game just looked soft at 1080i, like it was throwing out half the fields and just showing 540p. Switching back to 720p made a huge difference. I never noticed something that bad when I had tried 1080i vs 720p with Oblivion on the 360, only that at 1080i Oblivion had worse framerate.
Ohy, there was a time when buying a tv was as simple as color or black and white. Now you got so many different type of LCDs, different processing quality, different resolutions, different life spans, different contrast, etc.
Note: Some games are now offering upscaling built-in, that the game offers in software mode instead of the PS3. So it's possible a game that lists 720p,1080i and 1080p is really only a 720p game, and then choosing 1080i just upscales 720p to 1080i, then the tv has to downscale that to 768p. And with so much processing, some quality has to be lost. And even the first game like this, Rainbow Six Vegas, has some glitch where the upscaled 1080i looks horrible and soft over just choosing 720p. Now this whole mess got more complicated. Which games have the best upscaling software, with no glitches, then which games actually render at 1080i and 1080p and when ones are the upscaling kind. LOL
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