Intel's newest processor will appear in new MacBooks that will supersede current models, the sources say. Current MacBooks use Nvidia graphics chips along with Intel Core i series and Core 2 Duo processors.

However, "CNET" says that, due to the enhanced graphics capabilities of Sandy Bridge, Apple -- at least for now -- has determined that it will not continue using Nvidia's graphics processing units (GPUs) in some models. MacBook models with screen sizes of 13 inches and below are expected to switch to Sandy Bridge-only graphics, while higher-end MacBook Pros are expected to use graphics from AMD, the article adds. Whether Nvidia will still be present in higher-end models is unclear, says "CNET."

"If proven true, the rumor is an extremely positive sign for Intel given how notoriously picky Apple is about the components it uses," notes "Gizmodo" (http://gizmodo.com/5710154/is-apple-ditching-discrete-graphics-in-the-ne...). "Apple would also be in a position to no longer release laptops -- like the recent MacBook Airs -- that disappointingly house 2009's Core2Duo processors to accommodate an Nvidia GPU."

Intel detailed the Sandy Bridge family's core technology at Intel Developer Forum (IDF) in September, claiming the chips would offer a big jump in graphics performance, in part because the GPU is now part of the CPU die, rather than a separate in-package unit. The Sandy Bridge line will be officially unveiled at the Consumer Electronics Show in Las Vegas on Jan. 5.