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heat capacity vs. specific heat: What's the difference?

In the context of thermodynamics, the heat capacity (also called thermal capacity) of a substance is the heat required to raise its temperature one degree. Heat capacity is expressed as the ratio of the heat energy absorbed by a substance to its increase in temperature. The specific heat capacity (or specific heat) of a substance is the heat capacity per unit mass—such as the number of calories required to raise the temperature of 1 gram of the substance 1°C, or the number of BTU’s per pound per degree F. Materials with high heat capacities, such as water, require greater amounts of heat to increase their temperatures than do substances with low heat capacities, such as metals.