Need help with strange normal map noise.

[Name3323]

Im attempting to make a crystal texture, and it looks fine from far away, however, apon getting closer, it is visibly grainy, and I cant figure out on why, if there is any way to fix this, please let me know.

[Esger van der Post]

Make sure all nodes leading up to your normal and AO are set to 16 bit.
The L8 and L16 under grayscale nodes indicates bitdepth at a glance to make it easier to find the first node(s) which may cause the issue.