Intel's Larrabee Graphics To Take On Nvidia, ATI ... In 2010

Intel wants to get back into the discrete graphics game and on Monday revealed some details about how it plans to get there within the next couple of years with a family of products and development tools codenamed Larrabee.

The Santa Clara, Calif.-based chip giant will officially present a paper on "a many-core visual computing architecture" at the SIGGRAPH 2008 conference in Los Angeles on Aug. 12 but has already placed the paper online.

Intel on Monday said the first Larrabee-based product will be released "in 2009 or 2010." That unspecified device "will target the personal computer graphics market" but Intel promised applications for Larrabee that go beyond traditional graphics processing and pledged to build the infrastructure and ecosystem necessary for an ambitious plan to blend linear and parallel computing on entirely x86-based hardware platforms.

"It's shaping up to be an interesting product. We won't know where it scales in terms of performance until we have hardware in hand, but they've taken a number of steps to make it fit into the market," said Dean McCarron, principal analyst at Mercury Research.

According to the analyst, Intel's Larrabee presentation is lighter on more "esoteric" details previously emphasized by the chip maker and more focused on appealing to potential developers by promising support for existing graphics APIs like Direct X and OpenGL.

The term "ray tracing," for example, is noticeably downplayed in the paper and accompanying press statements from Intel. Ray tracing is a technique that "traces" the path of light through objects to produce a higher degree of photorealism than is possible with traditional raster-based graphics. The downside -- mainstream graphics processors lack the horsepower to perform such work efficiently in real time.

Intel had in the recent past highlighted the ray tracing capabilities of Larrabee, promising to produce a product that can perform such graphically intense calculations but at an acceptable computational cost. At the company's recent Research@Intel Day, Intel CTO Justin Rattner made ray tracing the central theme in his comments about Larrabee, but the SIGGRAPH paper doesn't mention the subject until more than half the way through.

For now, the focus is on Larrabee as a potential threat, albeit a distant one, to the discrete graphics products made by Nvidia and Advanced Micro Devices. Nvidia, headquartered in Santa Clara, Calif., is the market leader in discrete graphics cards for PCs and dominates the high end with its GeForce line of products. Sunnyvale, Calif.-based AMD's ATI division is second overall and enjoys the strongest sales of its Radeon products in the more price-conscious segment of the market.

Intel remains the market leader in shipments of graphics hardware, due to the huge numbers of motherboards it ships featuring integrated graphics chipsets. The overwhelming majority of computers sold worldwide come with graphics hardware that taps into the same available memory as the central processor rather than one or more discrete graphics cards with separate, dedicated graphics memory.

But the increasing demands on graphics hardware by modern PC user interfaces, rich media applications and mainstream gaming has helped Nvidia become a genuine semiconductor powerhouse, while Intel's main CPU rival AMD bought its own large footprint in the discrete graphics market with its 2006 acquisition of ATI.

Intel's strategy, some years in the making, has been to develop its own discrete graphics unit in-house rather than acquiring one, according to McCarron.

"It's very clear that some time ago, say two or three years ago -- and keep in mind that back then we were hearing rumors that Intel was looking at ATI or Nvidia [as possible acquisitions] -- but back then the decision was clearly made to develop this expertise in house," the analyst said.

Next: Building The Larrabee Ecosystem