Calculator · Tech art

Texture memory calculator

List the textures of a material or a whole pack and see how much GPU memory they take in each format, with or without mipmaps. Handy for mobile budgets and for picking texture sizes.

NameWidthHeightFormat×

The same textures in other formats

Check a model’s texture sizes before you ship it with Model Check.

Questions

Why does the PNG size not matter?

PNG and JPG are compressed only on disk. On the GPU a texture is stored uncompressed (RGBA8) or in a GPU format like BC7 or ASTC, so memory depends on the pixel size and format, not the file size.

How much do mipmaps add?

A full mip chain adds about one third: each level is a quarter of the one before it, and 1/4 + 1/16 + … ≈ 1/3.

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