Small Grain Material/Shader

I wanna know if it’s possible to make small grains with the current Material Editor. Been looking to see if its possible but it keeps coming back to Displacement but i dont want to rely on that cause it looks to noisy. Is it possible with pixel offset something from angles you can see the grains. I want to do some snow for a scene but i dont know where to really start on that grain part were you see tiny frosted snow flakes with some subsurface scattering.