The acquisition of 3dfx by Nvidia will be completed in the first quarter of the 2002 financial year.
3dfx said the US Securities and Exchange Commission had declared Nvidia's antitrust waiting period over.
3dfx announced its dissolution in December 2000, promising to transfer its assets and stocks to Nvidia in a cash and stock deal worth $112 million.
Nvidia gains Nvidia will acquire 3dfx's patents, patents pending, trademarks, brand names and chip inventory.
Nvidia has just announced record revenues and earnings for the fourth quarter ending January 28, 2001.
Nvidia's revenues increased to $218.2 million compared to $128.5 million for the same period a year ago, an increase of 70 per cent. Operating income for the quarter ending January 28, 2001 was $31.1 million - or $.038 per share - compared to $14.6 million or $0.19 per diluted share for the same quarter last year, an increase of 113 per cent.
Jen-Hsun Huang, president and CEO of Nvidia, said: "Our entrance into the Mac, mobile, and workstation markets was met with great enthusiasm."