GTX 1060 Here, Been using it last couple of days, 80% faster than GTX 960, Better encoding also
Unfortunately DVDfab still having blocking issues with same bitrate encodes. You don't need anything special with Nvidia Pascal architecture. Still no b-frame support, but you can set reference frames to 8 960 was limited to 4
aq Mode on
aq-strength 9 (not even sure if it's using this) - Nvenc seems to have adjusted aq mode, works better with pascal.
Allmost lossless encodes at 8kbps streams
Staxrip Log
NVEncC (x64) 4.29 (r977) by rigaya, Dec 17 2018 12:04:34 (VC 1900/Win/avx2)
OS Version Windows 10 x64 (17134)
CPU Intel Xeon(R) X5670 @ 2.93GHz (12C/12T)
GPU #0: GeForce GTX 1060 3GB (1152 cores, 1809 MHz)[PCIe2x16][418.81]
NVENC / CUDA NVENC API 8.1, CUDA 10.1, schedule mode: auto
Input Buffers CUDA, 36 frames
Input Info avcuvid: VC-1, 1920x1080, 24000/1001 fps
Vpp Filters copyDtoD
Output Info H.265/HEVC main @ Level auto
1920x1080p 1:1 23.976fps (24000/1001fps)
Encoder Preset quality
Rate Control VBRHQ
Bitrate 8000 kbps (Max: 22000 kbps)
Target Quality auto
Initial QP I:20 P:23 B:25
VBV buf size auto
Lookahead on, 15 frames, Adaptive I, B Insert
GOP length 150 frames
B frames 0 frames
Ref frames 8 frames, LTR: off
AQ on
CU max / min 32 / auto
Others mv:Q-pel
NVEncC64.exe --avhw cuda --vbrhq 8000 --codec h265 --preset quality --cu-max 32 --bframes 0 --ref 8 --gop-len 150 --lookahead 15 --strict-gop --max-bitrate 22000 --aq --cuda-schedule auto --colormatrix bt709 --colorprim bt709 --transfer bt709 --mv-precision q-pel --cabac --aq-strength 9