One good example is ray casting. In a GPU there is no temporal locality, each pixel is ideally independently determined. On a GPU you can cast a single ray and

One good example is ray casting. In a GPU there is no temporal locality, each pixel is ideally independently determined. On a GPU you can cast a single ray and flood fill out from there. This is slightly similar to what Ken Silverman did in Voxlap with wave surfing, although IIRC that algorithm only fills along vertical scanlines.