Cuomo's lawsuit says Intel forced computer makers into agreements to favor Intel chips and threatened to punish those thought to be working too closely with Intel competitors like AMD.
Cuomo's lawsuit came about two weeks after news reports that the U.S. Federal Trade Commission is considering filing a formal complaint against Intel. The New York attorney general's lawsuit mirrored AMD's suit, according to Intel.
The European Commission fined Intel 1.06 billion (equivalent to US$1.44 billion at the time) in May, after finding it guilty of antitrust violations.
In 2008, the Korea Fair Trade Commission fined Intel about $25 million for abusing its dominant position in the PC processor market.
Meanwhile, Intel's appeal of the E.U. antitrust ruling last May is unaffected by Thursday's surprise settlement with AMD, said Intel spokesman Robert Manetta.
Intel appealed to the E.U.'s second-highest court, the Court of First Instance (CFI), in Luxembourg in September, accusing the regulators of erring in law and of producing sloppy analysis when it found the company guilty of monopoly abuse.
"We're well into our appeal at the CFI and continuing to pursue that," Manetta said in an e-mail.
Intel said in its appeal that the Commission erred because it failed to prove that actual foreclosure of competition occurred as a result of discounts the chip maker gave to business partners. Intel accused the Commission of procedural errors that denied the company the ability to defend itself properly.
It described the $1.45 billion fine as "manifestly disproportionate" and asked the court to annul it.
There is no strict timetable for an appeal at the CFI, but cases are usually heard within a year of being lodged, and a ruling by the CFI can take a further 18 months.
Thursday's settlement also should have no bearing on the U.S. Federal Trade Commission's inquiry into Intel's business practices, according to David Balto, the commission's former policy director.
"The job is not done," Balto said via e-mail, speaking independently and not on behalf of the FTC. "The Intel-AMD case is a private dispute. Although the settlement may eliminate some barriers, FTC action is necessary to assure long-term relief in this market, that competition is fully restored, and that consumers have the benefit of an open market."
(Paul Meller in Brussels, Mikael Ricknäs in Stockholm, Grant Gross in Washington, D.C., and Chris Kanaracus in Boston contributed to this report.)
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