How does this compare the the new Intel MIC (Xeon Phi) co-processor boards? I think they claim 1TFLOP. Can we think of this as a low-powered alternative?
It looks like (from info on wikipedia pages) the Xeon Phi 3100, gets about 3.3 GFLOPS/WATT, whereas the Epiphany E64G401 manages about 50 GFLOPS/WATT.
So something like 10 of these might compare to 1 xeon phi, and still be cheaper in terms of hardware, and much cheaper in terms of power consumption.
Phi has shared GDDR and distributed caches. Phi cores and caches are connected through a bidirectional ring interconnect, not a 2D mesh network. Still similar, but not as much.