>>721119172
Xbox had a high end PC-level GPU coupled with a low-tier Pentium III 733 CPU with a crippled cache. The system has Direct X 8.1, shader model 1.1, vertex shader 1.1 and two Vertex Shader units, while the Geforce 3's only had one. The Xbox GPU was quite powerful.

You can't name anything else on the PC that used bump mapping and similar lighting effects (such as the flashlight) before Halo in 2001. I doubt you'll find one.