PCPro is reporting that Nvidia was expending a fair bit of effort cautioning people attending NVISION to take the Larrabee hype with a grain of salt - they apparently pointed out that not much in the way of detailed specifications have been released yet, and that there is no magic tool to make a highly parallel x86 processor be a great GPU.

Interestingly enough, with massive numbers of stream processors, Nvidia is in a bit of a "pot calling kettle black" position, as it faces the same problems with factoring software over large numbers of processors.

Peter Glaskowsky, a GPU architect and blogger, predicted that the "large" Larrabee of 2010 will have roughly the same GPU performance as a 2006 GPU from ATI or Nvidia.

Thanks for the correction Peter, and thanks for the links - good information in them.

Peter's blog post #1 & blog post #2

Nvidia also admitted to having underestimated ATI, for which it is now paying due to the superior price/performance of the 48xx series.