AFAIK, Nvidia have never fabricated their own cards, but they do design the reference boards that most OEMs use as a basis for their own cards, and they did at

AFAIK, Nvidia have never fabricated their own cards, but they do design the reference boards that most OEMs use as a basis for their own cards, and they did at one point release cards directly under the Nvidia brand (the cards were fabricated by Foxconn using Nvidia's designs).