It's significantly more bandwidth efficient to do tile based rendering however it has more performance cliffs and requires more game developer care to avoid hit

It's significantly more bandwidth efficient to do tile based rendering however it has more performance cliffs and requires more game developer care to avoid hitting issues. For mobile SoCs (powervr, adreno, mali, and whatever apple calls their powervr-derivative) you can't just throw GDDR and get gobs of bandwidth, and also bandwidth is power expensive, so the savings more than offsets the performance cliffs and developer complications