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> Intel's Xeon Phi cards pack 240 x86 CPUs per card

> We've got a stack of then in the office; they're pretty interesting.

That's funny, seeing as the only Phi coprocessor you can buy right now only has 60 cores [0].

I mean, what Intel has done is quite impressive, but let's not exaggerate.

[0] http://ark.intel.com/products/71992/Intel-Xeon-Phi-Coprocess...

One important observation is that the interconnect out of the Phi cards is note very good. While the interconnect inside Phi is pretty good the bandwidth to communicate with other computing facilities is through the PCIe bus. This places the Phi cards close to GPU's very good at graphics and a few specialized problems like protein folding but not supercomputers that can tackle hard problems like sparse matrix solving.

Have you tried benchmarking serving dynamic web content on them?