https://www.pcgamer.com/testing-ray-tracing-performance-with-3dmarks-latest-benchmark/

UL Benchmarks (formerly Futuremark) just released the latest update to its 3DMark graphics testing suite, Port Royal. It's the first DirectX Raytracing (DXR) benchmark from the company, and it's designed to give us a look at what graphics in games could become over the next several years. That's because unlike Battlefield 5, it implements DXR reflections, refractions, lighting and shadows, and—in the demo mode—even "dynamic global illumination with ray traced photon mapping." (I asked, and this is actually only used in the first bit of the demo with the drone flying around in the dark, but damn if it doesn't sound impressive!) Needless to say, that's enough to push some GeForce RTX cards to their breaking point.

I ran the benchmark on the four GeForce RTX cards to see how they performed under the intense workloads. The standard Port Royal run uses a 2560x1440 resolution, so already a step above the 'typical' 1080p display. It requires DXR compatible hardware and drivers, and lists 6GB VRAM as the minimum as well.