Open-Source Nouveau Linux 4.10 + NvBoost vs. NVIDIA Proprietary Linux Driver Performance

Earlier this week I posted some benchmarks showing the open-source NVIDIA (Nouveau) driver performance on Linux 4.10 with the new NvBoost capability for finally being able to hit the "boost" clock frequencies with Kepler graphics cards when using this reverse-engineered driver. While the manual re-clocking and enabling NvBoost is able to increase the Nouveau driver's performance, how do these results compare to using the closed-source NVIDIA Linux driver? These benchmarks answer that question.