Eidos says Ray Tracing will be added to Shadow of the Tomb Raider via a post-launch update.
will feature Native 4K resolution, HDR, High-Quality Anti-Aliasing, Proven Ambient Occlusion and many other high-end features on PC at launch! Thanks to our partnership with NVIDIA, Ray Tracing technology will also be added in a post-launch update.
The bad news is that even the GeForce RTX 2080 Ti seems to have trouble running the game at 1080p. Folks who saw the demo running with a FRAPS overlay report the game ran between 30-70fps. For most of the demo, Shadow of the Tomb Raider achieved 40fps, but in more challenging scenes the framerate dropped as low as 30fps. That's at a Full HD resolution, which is probably not what you want to use in combination with a high-end video card.
Eidos responded to the performance figures by pointing out that this feature is still an early work in progress:
The final Nvidia Ray Tracing integration will be released as a post-launch update, and we are excited for our fans to experience it first-hand.
— Tomb Raider (@tombraider) August 21, 2018