The decade-old Call of Duty: Black Ops has just got modded to run in 4K with ray tracing effects and the result is quite impressive. To record the video posted on YouTube, the game was running on a rig consisting of the following: Intel Core i7-9700K, 32 GB of memory, and a single NVIDIA GeForce RTX 2070 Super video card.
https://www.notebookcheck.net/The-first-Call-of-Duty-Black-Ops-game-looks-great-in-4K-with-ray-tracing-effects.503502.0.html
This isn't real ray tracing and you as staff of such a reputable website should know that