U.S. FTC sues to block Nvidia deal to buy Arm

FILE PHOTO: The logo of technology company Nvidia is seen at its headquarters in Santa Clara, California February 11, 2015. REUTERS/Robert Galbraith

SAN FRANCISCO/WASHINGTON (Reuters) -The U.S. Federal Trade Commission on Thursday sued to block U.S. chip company Nvidia Corp's more than $80 billion planned acquisition of British chip technology provider Arm, adding to already significant global regulatory challenges of the deal.

The FTC said the proposed deal would give one of the largest chip companies control over computing technology and designs that competitors rely on to develop their own competing chips.