The biggest difference between SPC and laminate flooring is that SPC is often waterproof and appropriate for situations where laminate shouldn’t be used, such as bathrooms. The vinyl wear layer of SPC offers more cushions and absorbs sound to make it a quieter floor.
This biggest difference is that SPC is waterproof, so it can be laid over most subfloors with little preparation. A typical traditional vinyl floor has flexibility that will show any unevenness in the subfloor. The rigid core of SPC flooring allows for longer and wider format options. Additionally, you do not need to worry as much about preparation of for use over cracks or divots in subfloors.