The technique used - high-resolution photogrammetry to a to achieve a full highly detailed model which also includes a medium and low poly version including separate texture maps in 8k 4k and 2k quality.
High Poly - 401,000 Triangles - 1,203,000 Verticies
Medium Poly - 113,000 Triangles - 401,000 Verticies
Low Poly - 44,592 Triangles - 133,776 Verticies
The Diffuse texture included is in 8k, 4k and 2k.