Perfect timing! I just got a new machine with a Quadro RTX4000 card, and I've been looking for example code to see what it can do.
It still blows my mind that Mandelbrot fractals (and now ray tracing) that would take 10s of minutes to render at 640x480 on my first computer, now render at 60fps on a 4k display with real-time panning/zooming.