AMD wasn't immediately available for an interview, but in a statement the company said, "Intel's action is an attempt to distract the world from the global antitrust scrutiny it faces."
"Should this matter proceed to litigation, we will prove that Intel fabricated this claim to interfere with our commercial relationships and thus has violated the cross-license," the company said.
AMD sued Intel back in 2005, accusing the latter company of anti-competitive behavior that violates antitrust laws. The suit is pending.
Intel first notified AMD of the licensing problems in October and said it's still willing to talk to its smaller rival to settle the dispute. AMD's position on future talks isn't clear. No lawsuits have been filed yet.
In the meantime, GlobalFoundries officially opened for business this month. The company has announced plans to expand manufacturing capacity at its facility in Dresden, Germany, by then end of the year, and to begin construction this year on a second fabrication plant in Saratoga County, N.Y.
The $4.3 billion GlobalFoundries employs 3,000 people worldwide and is based in Silicon Valley, Calif.
Those next-generation x86 processors from Intel and AMD are paving the way for improved virtualization. InformationWeek has published an independent analysis of this topic. Download the report here (registration required).