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Larrabee as a GPU is a trojan horse.
With 32x 512-bit vector MIMD it will whoopass CUDA.
512-bit can handle 8 double precision (32 bit) or long integer variables. And 32x. That is equivalent to 256x the speed of a regular math unit in a single core processor.
That means for math work, Larrabee has the potential to be (256/4)=64x as fast as a quad core CPU clock-for-clock. It will probably be running at half the frequency of a regular CPU, maybe slower. But that will equate to at least 16-24x the speed of a quad core.
And math libraries can be very rapidly modified for Larrabee x86.
R.I.P. CUDA/Tesla.
nV know this. GT300 has to compete. Look at the panic in their eyes.
Moore's Law will be bust open for the 2008-2010 season. And the Soda-Darwin law applies: survival of the fastest.
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