Smaller textures help with performance?

[ecsancho]

Would smaller texture sizes (in dimensions and filesize) give better mobile performance overall? like would  a 1024x1024 texture render and perform better than a 2048x2048?

Thanks

[xerver]

Smaller textures take less time to upload to the GPU, and use less memory while there. The performance of *how fast* something renders is not related directly to the texture size, but instead to *what you are rendering*. For example, rendering a screen with 1024x1024 pixels is faster than a screen with 2048x2048 pixels because the fragment shader runs on less pixels. Its all about the shaders, and the viewport size, not necessarily the texture you use.