VRay RT vs. VRay - 3d Noise bump difference

[gandhics]

I was using VRay RT for initial look dev. I was using Noise map in 3D coords.
In RT, The detail of bump was amazing.

BUT, when I render with VRay, all the fine details were gone.

Anybody know why there is a difference?
How can I get the same detail in actual render?

Thanks in advance.

[vlado]

Can you show your Noise settings?

Best regards,
Vlado

[gandhics]

This is radius 100 sphere with default Noise map(Turbulance).

[vlado]

I see; what are your AA settings for the production renderer? The closest equivalent to what the RT engine does is "Adaptive DMC" image sampler with filtering turned off.

Best regards,
Vlado

[gandhics]

Tried "Adaptive DMC" image sampler with filtering turned off, but no difference.

I wonder it is because Noise map output only 8bit information?