This disclosure describes techniques for supporting intra-frame timestamps in a graphics system that performs tile-based rendering. The techniques for supporting intra-frame timestamps may involve generating a timestamp value that is indicative of a point in time based on a plurality of per-bin timestamp values that are generated by a graphics processing unit (GPU) while performing tile-based rendering for a graphics frame. The timestamp value may be a function of at least two of the plurality of per-bin timestamp values. The timestamp value may be generated by a central processing unit (CPU), the GPU, another processor, or any combination thereof. By using per-bin timestamp values to generate timestamp values for intra-frame timestamp requests, intra-frame timestamps may be supported by a graphics system that performs tile-based rendering.