It's the Artix 7. The Kintex is the next step up I believe. Both are in the 7 series based on the 28nm process. The Spartan 6 is on a 45nm process. Interestingly, the smaller Artix 7 15T chip that's in the Mojo has double the logic cells of the Spartan 6 LX9 in the Hugo (16,640 vs 9152) and 45 DSP slices vs. 16. Gotta love Moore's law. I'm guessing there is still plenty of room left over in that FPGA.
9/26/16 at 9:51pm