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From the article:
"The Knights Corner chip mixes standard x86 CPU cores with specialized cores and works as an accelerator alongside the CPU to boost parallel application performance."
So maybe these are GPU(-like) or even more specialized.
GPU-like refers to streaming or SIMD programming models.
These intel boards can be programmed under either model, but also support MIMD, via message passing even. Which means a large amount of code can be ported to it fairly straightforward. Or at least the porting process is much much much easier than the porting to a GPU would be.
If intel is really getting that DP performance out of that chip, this could put NVIDIA in trouble in the HPC arena. Given that intel's programming tools are light years ahead. Of course it all depends on the price point for these chips.