Note: this has only been tested on Firefox browsers -- Chrome works, but does not always reach 240 Hz.
Supplemental website for the HPG 2019 short paper: Temporally Dense Ray Tracing by Pontus Andersson, Jim Nilsson, Marco Salvi, Josef Spjut, and Tomas Akenine-Möller.

Hang on, measuring monitor refresh rate...

Explanation: In this scene we can see that our method handles thin, slowly-moving features better than vanilla rendering, but rapidly-moving parts get more blurred with our method. TAA gets substantially more blurred than both other methods and thin geometry may sometimes even disappear.

Left: 60 FPS vanilla rendering.
Middle: 60 FPS rendering with TAA.
Right: Our method at 240 FPS.

Desired frame rate: