The increase on the boiling point of a solvent (water in thiis case) is a colligative property: it is proportional to the number of particles dissolved.
Sodium chloride is a ionic salt with chemical formula NaCl. It ionizes fully into two ions (Na+ and Cl-).
Calcium chloride is a ionic salt with chemical formula CaCl2. It ionizes fully into three ions (one Ca(2+), and two Cl-).
So, the boiling point of the solution with 1 mole of calcium chloride will be higher than the boiling point of the solution with 1 mole of sodium chloride.