Xbox resolution question?

[Pozer]

Currently thinking about obtaining a 1080p TV for xbox360 gaming. Is there any correlation of getting worse framerates when setting the 360 to 1080i as opposed to 720p? Its my understanding that the xbox360 runs games at an internal resoution and then upconverts via video output according to resolution setting. So framerate shouldn't be a factor.

I still run across people on forums claiming games like Oblivion run better at 720p. Is there truth to this? Currenty the TV im looking at isn't known for good 720p support.

 

[Bohdy]

Shouldn't be any performance loss, but their could be some quality loss or lag as your TV probably has to perform deinterlacing at 1080i.

 

[Mmmkay]

I believe the only games which use a 1920x540(or 1080) framebuffer are XBLA titles. Everything else upscales 720p. Tiling costs for a 1920x1080 framebuffer alone (call me skeptical but I don't think any main release title would field render as suggested in Dave's article) would give a pronounced performance discrepancy. That's not even considering the extra resources needed to render a game at 1080p.

 

[Guden Oden]

I seriously doubt even XBLA titles use a 1080i framebuffer... Just doesn't sound right, considering most titles are either very simple graphically (and barely needs even 720P), or even 2D in nature.

 

[Mendel]

Well, I have nowadays my xbox always set at 1080i because the interface looks sharper and particularly its nicer for the occasional photo browsing. I guess 1080i is also the native resolution for my tv and although 720p still looks exceptionally good, 1080i looks just a bit better. With DLP technology I also don't see some of the ill effects of the interlacing that a CRT would have, there's no such dramatic change of brightness of the alternating lines and no such flickering effect as the physical refresh rate of my tv is 300Hz anyways. That's still 150Hz if you'd like to count it halved due to interlacing.

 

[mkillio]

My 360 works in 1080i but the image is garbled and "double visioned" when I try to set it to 720p. Any ideas? Also do other people agree that 1080i look better than 720p and does 360 support 1080p?

 

[Mendel]

My 360 works in 1080i but the image is garbled and "double visioned" when I try to set it to 720p. Any ideas?

Apparently you tv doesn't do very well with 720p then!
You might be able to "fix" it slightly if you had access to some debug menus in your tv, depending on what you have, but its quite possible that you're gonna have to be just happy having "just" the 1080i.

Also do other people agree that 1080i look better than 720p

This is very subjective of course, but hell yeah!

does 360 support 1080p?

That's a no unfortunately.

 

[LightHeaven]

Any ideas? Also do other people agree that 1080i look better than 720p

Thats due the fact they use a native 1080i TV set. so even if you choose 720p in 360's settings, your Tv still convert the signal to 1080i, and since for most tvs their converters is a lot worse than 360's one you loose some IQ there.

But i think that a true 1080i material would look really nice on 1080p Tvs.

 

[kyleb]

At least as far as I have seen, no games render at anything above 1280x720 on the 360. So on a progressive scan display, 1080p or otherwise, you will almost cetainly be beter off setting the 360 to 720p to get the full 60hz progressive and let the TV handle the scaling.

 

[c0_re]

Native to your TV resolution is almost always the best solution in every case no matter whats hooked up.