Nice that you got reclocked.
Bernie i testing some GPUs and Drivers to get better perfomance on Raptor Backbird and Gnu Systems, so my raptor-blackbird it is original raptor SFF-mTX so i like this factor,however i not have much space for big GPUs, so it only fits gpu low profil, single slot, so i have gpus to testing compat to Gnu OS like intel arc pro a40, which at the moment it is not working as it need some patches on libdrm, but this arc gpu may work OK without firmware but i untested yet. So what i using now is Quadro k1200 which it is Maxwell, maxwell it is newer than Kepler and still do not using signed firmware on host. k1200 it working nice and it compat to NVK 1.4, however Kepler is only compat to NVK 1.2. Why so import NVK? On Gnu system we do not have a Libre driver for video hardware decoder on Nvidia GPUs, howerver we can use the Libre NVK not just for gaming but for video decoder and encoder for smooth and hight performance for video play and any vk-software acceleration ready, so this why Maxwell 1.0 shine.
So Bernie GPUs like 780 Ti and 710 is still Kepler, however there are i high performance Maxwell gpu that do not need firmware y compat to nvk 1.4 as mine it is: Nvidia GTX 750 Ti or Nvidia GTX 750, this GPUs it is the best of the best for newer features and performances for Gnu OS.