It's hard to believe this environment demo by Web3D is a real-time simulation inside Unreal Engine 5 and not real-life footage. If you squint your eyes, however, maybe you could recognize the Megascans assets and Ultra Dynamic Sky plug-in.
"UE5 never felt so buttery. Would you guys be interested in a 'How to make a realistic landscape in Unreal' video?" says the caption. According to Web3D, this incredible environment simulation runs on GeForce RTX 4090 combined with the Core i9-14900K processor along with 128GB of RAM.
This is not the first time Web3D has shared a photorealistic environment made with Unreal Engine 5. For example, this is a real-time simulation running at 30 FPS on GeForce RTX 2070 and 32 GB of RAM: