When Intel finally canned its plans for a graphics processor last year, it also stated that the company would change its focus from consumer to high-performance computing (HPC). A year later, the first of its new Knight's family of many-core co-processors is ready to enter the HPC field against NVIDIA's Tesla series. While NVIDIA arguably has a head start, Intel's advantage is that its processor architecture is pure x86 compared to NVIDIA's, which requires a port to NVIDIA's proprietary CUDA platform.
Ars Technica - Intel's Larrabee GPU will finally go into commercial production next year, but not as a graphics processor. Instead, the part will make its debut in a 50-core incarnation fabbed on Intel's 22nm and aimed squarely at one of the fastest growing and most important parts of NVIDIA's business: math coprocessors for high-performance computing (HPC).
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