A golf ball comprising a core and a cover, the core consisting of: a solid inner core layer formed from a first unfoamed thermoplastic composition TP1 and having a diameter of 1.10 inch or less and a center Shore C hardness (Hcenter) of 50 or less, one or more optional intermediate core layers, and an outer core layer formed from a second thermoplastic composition TP2 comprising at least one transparent or plasticized polyamide and having a thickness of 0.200 inches or greater and an outer surface Shore D hardness (Houter surface) of 55 or greater, wherein Houter surface+30 >Hcenter, and Houter surface+30 −Hcenter≧40.