Last week, Epic released Unreal Engine 5 for early access, along with a sample demo project - Valley of the Ancient - for developers to explore. Crucial to UE5 are two fundamental new technologies: Nanite, which aims to deliver something akin to 'infinite detail' and Lumen, a state of the art global illumination solution. At its maximum 'epic' settings, the demo targets 1080p at 30 frames per second on PS5 and Xbox Series X. However, another new technology - Temporal Super Resolution (TSR) uses smart upscaling to deliver a convincing 4K presentation. This is cutting-edge stuff and having now spent some time with UE5 on PC, we have some impressions and initial performance numbers.