The world’s largest maker of microchips, Intel, is to pay its main rival, AMD, one and a quarter billion dollars to settle a long running anti-trust and patent dispute. In return, AMD will drop all its lawsuits against Intel. Mark Gregory reports. By reaching a settlement now, the two sides avoid uncertainty over the outcome of the trial and millions of dollars of legal costs. The deal is a particular relief to AMD’s investors. The company’s finance is being strained by the unequal battle with Intel. AMD shares rose nearly a third in value on news of the deal, but there are also advantages for Intel which’s facing multiple investigations into its business practices along with several lawsuits by regulators in the US, Europe and Asia.