Intel and AMD, arch-rivals for decades, are teaming up to thwart a common competitor, Nvidia. On Monday, the two companies said they are co-designing an Intel Core microprocessor with a custom AMD Radeon graphics core inside the processor package. The chip is intended for laptops that are thin and lightweight but powerful enough to run high-end videogames, the companies said. From a report: Executives from both AMD and Intel told PCWorld that the combined AMD-Intel chip will be an "evolution" of Intel's 8th-generation, H-series Core chips, with the ability to power-manage the entire module to preserve battery life. It's scheduled to ship as early as the first quarter of 2018. Though both companies helped engineer the new chip, this is Intel's project -- Intel first approached AMD, both companies confirmed. AMD, for its part, is treating the Radeon core as a single, semi-custom design, in the same vein as the chips it supplies to consoles like the Microsoft Xbox One X and Sony Playstation 4. Some specifics, though, remain undisclosed: Intel refers to it as a single product, though it seems possible that it could eventually be offered at a range of clock speeds. [...] Shaking hands on this partnership represents a rare moment of harmony in an often bitter rivalry that began when AMD reverse-engineered the Intel 8080 microchip in 1975.