[QUOTE="TimothyB"]A problem with 1080p for games is that games don't have unlimited detail like the real world 1080p recordings where you can say it's twice the detail as 720p and see the difference. With a game, at 720p, you might already be displaying the limit of detail the textures in the game can show, so suddenly upping the resolution to 1080p it might look exactly the same except a little more fidelity in the distance and smaller jaggies. In the end, a game with sharper textures and AA would probably look better than a 1080p game with no AA (because of 1080p performance) and less memory for textures.
immikeulate
No offense but that sounds like a half baked crack pot theory to me.
Extreme example, in a FPS game, move to stare a foot from a wall. You are so close you probably seeing that the texture is not holding up, looks low-res. Switching to 1080p it will look exactly the same. So I'm saying, on average you have to be a certain distance from a texture in a game where it shows the max detail within the area on the HD screen it's taking up. So upping to 1080p might not help the foreground much, but more things in the background and distance. And even then, sometime games lower the res in the distance for performance, or bad texture filtering blurs textures at angles, like walls or the ground in the distance. But for sure, smaller jaggies, or more fidelity along object edges, like making out a person in the distance.
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