There are currently two Precision Types in Shader Graph. Use the options listed in Precision Modes to define a Precision Type for each node.
||Medium precision floating point value; generally 16 bits (range of –60000 to +60000, with about 3 decimal digits of precision).
Half precision is useful for short vectors, directions, object space positions, and high dynamic range colors.
||Highest precision floating point value; generally 32 bits (identical to
float in regular programming languages).
float precision is useful for world space positions, texture coordinates, and scalar computations that involve complex functions such as trigonometry, power, and exponentiation.