That was certainly the storry earlier this year, when stockfish won. Now I wonder what kinds of improvements Komodo has made to get here. Stockfish is certainly improving all the time through the fish test project. (and you can contribute too!)
Better SMP scalability mostly. Stockfish still has a definite advantage over Komodo on fewer CPU cores, and shorter time controls. But it scales poorly above 8 cores, while Komodo scales almost linearly (the TCEC machine had 16 cores).
