Gran Turismo 5: Prologue, 720 Vs. 1080
Why this “match” ?
I often post screenshot on GTPlanet Forums.
GT recently asked me to grab some screenshots showing differences between 720 and 1080 resolutions in Gran Turismo 5: Prologue.
As I didn’t heard about articles stating on this, I thought it could be a good idea.
It took us a week to get all screens, 208 (Yeah, TaxiGamer doesn’t fill all our time!).
How we proceed :
All captures where pure digital signal through Playstation 3’s HDMI output.
As our hardware can only capture 1080i streams, we had to capture steady shots so no interlace fields are visible and ruin the comparison. And this way we get a 1080p “illusion”!
We recorded a “race” with a stopped car. We saved the replay and then captured 104 pictures at each resolutions, 1080 and 720.
Original screenshots were grabbed almost uncompressed (YUV 4:2:2 16 bit) and we share them as PNG files to avoid losses on our Flickr Photostream and the slideshows below.
The only thing we’ve added is the watermark. We didn’t de-interlaced them or adjust anything else.
The results :
Well it depends your perception.
1080 offer a sharper image but aliasing will be more perceptible. 720 looks “blurred” but introduce less jaggies. This is due to a different anti-aliasing methods between both resolutions.
It’s a matter of tastes !
You have to know that with both resolutions, tearing and slowdowns are seamlessly the same and occur at the same points in replays and in-game.
You’ll notice that 1080i screens look blurred, this is certainly due to GT5:P 1440×1080 native resolution upscaled to 1980×1080.
But on my LCD (Sony KDL-32D3000) 1080i/p signal looks way better because it is downscaled to native resolution (1366×768)…
Look for yourself!
1080i Screenshots
720p Screenshots
Great experiment! I agree - 720P looks sharper but has worse jaggies. 1080P looks slightly more burred but has far less jaggies and great resolution for distant objects. 1080 wins for me.
By the way, you have your results mixed up - you say: “1080 offer a sharper image but aliasing will be more perceptible. 720 looks “blurred” but introduce less jaggies. This is due to a different anti-aliasing methods between both resolutions.”
[...] Two numbers that have befuddled many HDTV buyers throughout the years are 720p and 1080i. What do they mean, exactly? There are plenty of technical explanations (here’s a great one), but most of you just want to know which will give you the best experience on your PlayStation 3. That answer will change depending on your television set, but if you want to see what the difference really looks like, check out these screenshots of GT5 Prologue. GTPlanet user R0M posted a few in this forum thread, and added 200 more to his post at TaxiGamer. [...]