5MB PNG version here, no compression.
The screenshot shows the player character's ship being navigated past a geometrically complex destroyer (of sorts), populated with intensely detailed meshes and high-resolution textures. Minimal aliasing issues are seen around the propulsion trails of ships in the distance, given the 4K resolution and AA settings.
As for No Man's Sky and its GPU benchmark performance on PC, we'll be working on it in the immediate future and will be able to update shortly after launch with performance metrics.
- Steve "Lelldorianx" Burke.