At GDC 2026, NVIDIA and CD Projekt RED presented a new tech demo for The Witcher 4. That tech demo took full advantage of RTX Mega Geometry and used real-time Path Tracing. And although the demo is not available for download, we can at least take a look at it.
The Witcher 4 Path Tracing Tech Demo starts at 15:19. I’ve timestamped the video, so it should start from that point when you click it. If the video does not start from there, you can manually go to that point.
The Witcher 4 will be powered by Unreal Engine 5, and it will support both NVIDIA DLSS 4 and Path Tracing. The GDC 2026 Tech Demo ran with 80FPS at 4K with DLSS Quality on an NVIDIA RTX 5090. Moreover, CDPR claimed that the demo can run with 58FPS at 1440p with DLSS Quality on an NVIDIA RTX 4070.
The Witcher 4 will be one of the first games to support RTX Mega Geometry. RTX Mega Geometry will handle massive scenes and update them up to 100x faster than previous methods. According to NVIDIA, this enables full‑fidelity path tracing with advanced detail and real‑time tessellation.
The new version of the NVIDIA RTX Mega Geometry will have a new level-of-detail system for foliage. The technology will selectively update scenes, reduce memory usage, and accelerate performance in a visually seamless manner.
Do note that since this is a pre-release tech demo, it does not represent the quality of the final game. So, this is no indication of how The Witcher 4 will run on PC when it launches. It could run better or worse than it does. After all, this tech demo does not have any NPCs, animals, or game logic running in the background.
In The Witcher 4, players will assume the role of Ciri. The story will focus on her journey as a fully mutated Witcher, navigating a world where old, dark forces are rising while grappling with the consequences of her past actions.
There is currently no ETA for when The Witcher 4 will come out. However, we do know that CD Projekt RED will showcase it this June at the Unreal Engine Fest event.
Stay tuned for more!
John is the founder and Editor in Chief at DSOGaming. He is a PC gaming fan and highly supports the modding and indie communities. Before creating DSOGaming, John worked on numerous gaming websites. While he is a die-hard PC gamer, his gaming roots can be found on consoles. John loved – and still does – the 16-bit consoles, and considers SNES to be one of the best consoles. Still, the PC platform won him over consoles. That was mainly due to 3DFX and its iconic dedicated 3D accelerator graphics card, Voodoo 2. John has also written a higher degree thesis on the “The Evolution of PC graphics cards.”
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