6000 kbps is actually not much for a grainy 1080p source so x265 will definitely start eating the grain. It might do for a 720p encode, depending on the aspect ratio.
You could also try using Avisynth and some filtering. SPresso at some very light settings can be undistinguishable but reduces the required bitrate by 5-15%.
__________________
And if the band you're in starts playing different tunes
I'll see you on the dark side of the Moon...
|