In December of 2006, NVIDIA admitted that the U.S Department of Justice (DOJ) had opened an investigation on Antitrust Violations against them. NVIDIA has revealed today, that they have received a subpoena from the DOJ’s San Francisco office, that they have formally closed the investigation and at this point no charges have been filed.

The exact allegations against the company have never been leveled against NVIDIA, except that the potential violations were related to  graphic processing units and card.