Normal Map artifacts in Cycles but not in Eevee

[Parfen (Boris)]

Normal Map baked in Marmoset, renders correctly. Also there are no problems in Substance Painter and Blender (Eevee). Seams appear when switching to Cycles. What is the problem?

[DukesGG]

Maybe play with autosmooth?

[RPaladin]

Is your baked normal map’s color depth set to 16-bits?
8-bits normal maps are known to sometimes cause artifacts for seams.

[Parfen (Boris)]

I tested 8,16 and 32 bit maps, no difference.