Running Z820 here with GTX 580 for rendering and quadro 4000 for GUI. Altered Avid’s Qualified GPU file to accept the driver Resolve wants. Also running Eyeon Fusion which uses the 580 which just screams. Side benefit is the Fusion/Symphhony/Resolve seem to all use the decklink card just fine on there own. Early days for us on resolve but everything seems to be working fine.