Theo Valich from Bright Side of News takes a closer look at the performance details that Intel's Justin Rattner recently unveiled about the upcoming Larrabee GPU at the SC09 conference. You can read it over here.
The keynote continued while the engineers scrambled at the back to try to beat the 1TFLOPS barrier. A couple of minutes before the end of the keynote, Justin added the infamous "And one more thing…" Initial overclocked performance was 913 GFLOPS, moved slowly past 919 GLOPS, bounced up to 997 GFLOPS and ultimately passed the 1TFLOPS barrier with 1006 GFLOPS. Now, we can debate the numbers all we want, but the fact of the matter is that nVidia Tesla C1060 delivers only 370 GFLOPS in an identical SGEMM 4Kx4K calculation. Thus, Larrabee today comes at 2.7x math performance of GT200 chip.