The article discusses the history of 3dfx Interactive, a company that produced powerful 3D graphics accelerators. 3dfx was spun off from Silicon Graphics and developed the IrisVision card, which was later replaced by the Voodoo card. The company's assets were acquired by NVIDIA in 2000 for $70 million and 1 million shares of common stock. The acquisition marked the end of 3dfx as a company, but its technology continued to influence the development of graphics processing units.