Template parameter vs function argument

I am writing some code and realized I don't know which would be better to use. What would the benefits/drawbacks of each? I am currently using the one with the const uint16_t, because I thought templating it would expand the binary by creating unique function signatures. Thanks in advance for anyone who wants to help explain this!

template<typename T, uint16_t response_size>
T get_endpoint_value(const uint16_t endpoint_id)

vs

template<typename T, uint16_t response_size, uint16_t endpoint_id>
T get_endpoint_value()

vs

template<typename T>
T get_endpoint_value(serial::Serial* serial, 
const uint16_t endpoint_id, const uint16_t response_size)

Where endpoint_id is just a value that gets copied into a buffer. response_size is used to size a uint_t buffer[response_size] during a data transfer over serial.