
ShootMyMonkey mentions scaling support for a pixel height of 576.
(Note: native resolution = back buffer resolution, front buffer = image for displaying/hardware scaling)
Games whose back buffers are rendered at strange resolutions must upscale the front buffer (at a cost of extra memory) to either 1280x720 (720p output) or to one of the acceptable 1080p resolutions. As of the January 2007 PS3 SDK, only the following front buffer resolutions are supported for hardware scaling to 1920x1080p: 960x1080 1280x1080, 1440x10x1080. For whatever reason, the Pure Video scaler in the G7x derived GPU (RSX) is gimped to horizontal scaling of specific front buffer resolutions. Ultimately each game 'could' opt to use a different filter/sample count combination (though I suspect most don't bother)." - Fafalada "lanczos is just one of the selectable filters. Some games let the GPU handle the scaling to 1080p directly from the arbitrary resolution. In upscaling to 1080p, some games may first scale to 720p in software before the GPU scales to a 1080p output. Hardware scaling to the output resolution chosen in the dashboard is automagically performed. AVIVO takes more samples for scaling so it is expected that the scaling is better (the algorithm also appears to be some form of bicubic, not a simple bilinear) Update: see below. Xenos is the hardware scaler, not HANA/ANA, which are just the video output chips dealing with digital/analog output to the various connections made with the display. In order to reduce the number of people asking about hardware scaling, please read the following: Here is how resolutions can be determined. I or other mods may update this thread as time goes. The other thread was getting to big for its own good, and as has been requested often enough, an easy-to-find compilation of discovered resolutions is needed.