A system, method, and computer program product are provided for processing primitive-specific attributes. A portion of a graphics processor is determined to operate in a fast geometry shader mode and a vertex associated with a set of per-vertex attributes is determined to be a shared vertex. The shared vertex is determined to be a non-provoking vertex corresponding to a first primitive that is associated with a first set of per-primitive attributes and the shared vertex is determined to be a provoking vertex corresponding to a second primitive that is associated with a second set of per-primitive attributes. Only one set of the per-vertex attributes associated with the shared vertex is stored and only one of the second set of per-primitive attributes associated with the second primitive is stored.