PVR textures versus PNG in OpenGL ES

Question

I\'m developing a 2D application for the iPhone that renders lots of textures. Most of them are loaded from PNG files with alpha transparency at the moment. As a test I\'ve been

Answer 1

Performance should be better with the PVRTC textures, as they are compressed (lossy). The decompression is done in the graphics hardware itself. Less texture data is being transferred around, so you get more bandwidth. The price you pay for the RAM and bandwidth saving is the loss of quality.