You’re correct. I guess they’re comparing against compressed pngs. Judging from the image at least.

But still, I think they’re cherry picking one of the worst formats to make the comparison look good.

Not to say that means this is bad. Just the cost/benefit is not nearly as good as it appears. We need comparisons against ETC or DXT.

The performance cost is not insignificant.

And comparing it to uncompressed original pngs is disingenuous. No games are using uncompressed textures.