The demo showcases CG humans in Unity while another comparison video utilizes High Definition Render Pipeline as a means of using Real-Time Raytracing to create photorealistic people and environments.

Memory resources on Unity3.com Andrew Frey – Reducing Memory Usage In UNITY, C# AND .NET/MONO Gamasutra: C# Memory Management for Unity Developers (part 1 of 3) For additional information, see: ...