Nothing has been moved

I'm old enough to actually have used a 386sx-based computer. And to write simple demos on it - it was possible to write fluid (30fps) animation on it, but simply filling screen with a solid color was already taxing its RAM bandwidth.

Anyway, Pi's bandwidth is barely enough for full HD video as it is. If you throw in non-trivial rendering - it's simply not enough, again.

Unless, of course, you're ready to limit yourself to "Tetris" or may be "Digger".