Nope - as per my sig I currently have a Nvidia 4GB 760. It's not the power of the GPU I struggle with it's the "black box" encoding approach that you get with HW Acceleration. On some formats it is great, sometimes it is not good or does not work at all (and can be different pending what Mft, Model, Driver combo you have).
Thanks
Nathan
PD 64 Bit-Win10 64 Bit-32GB RAM-80TB HDD
Sony FX6 - 500Mbps 4k/50p AVC-I HLG
Canon XF400 - 150Mbps 4k/50p AVC
GoPro Hero6 Black
Pana HS700-28Mbps 1080/50p AVC (High@L4.2)
Canon HV20-HDV 25Mbps 16:9 1440x1080/25p MPEG