> Well it is going to use the CPU to emulate the effects versus the non-existant GPU so your CPU/memory usage will be much higher.
Which brings us to the real point: what is the purpose of using 3D rendering here? Is it to display (more or less) useless animations and endless screen changes (i.e. overview) or is it so that _appropriate_ hardware does the job of rendering? With Gnome 3, it appears to be the former.