1. A graphics subsystem, comprising: a plurality of world-space pipelines, wherein each world-space pipeline is implemented within a different processing entity and is coupled to a different corresponding tiling unit in a plurality of tiling units; and a plurality of screen-space pipelines, wherein each screen-space pipeline is implemented in a different processing entity and is coupled to a crossbar, wherein each tiling unit is configured to receive primitives from the world-space pipeline corresponding to the tiling unit, aggregate the primitives into one or more cache tile batches, and transmit the one or more cache tile batches via the crossbar to one or more of the screen-space pipelines.