According to following link
Video Encode and Decode GPU Support Matrix | NVIDIA Developer
HW accelerated encode and decode are supported on NVIDIA GeForce, Quadro, Tesla, and GRID products with Fermi, Kepler, Maxwell and Pascal generation GPUs. Learn more …
GeForce cards are not supported for nvenc/dec SDKs. I am considering to use ffmpeg for a project of mine and I’d like to use hardware acceleration if possible. I am planning to buy a GTX1080 or 1070 for gaming soon. If these cards also support nvenc/dec/cuda libs, then I wouldn’t need another card.
Will I need a separate card to utilize encoding/decoding capabilities of nvidia SDK, or a GTX 1070/1080 is fine?
Thank you in advance.