3D Accelerator Review Step One - 3D Performance, the Real Deal

CPU Scaling Of 3D Graphic Chips - ATI Rage Pro

Besides the fact that the Rage Pro isn't very lucky with GLQuake, Quake II or Turok, it scales alright, although I consider the performance increase of 24 to 21 (Pentium MMX 200/Pentium II 300) as too little. I guess that the limitations of the Rage Pro are lying somewhere around the PII 266 or 300.