The Cloud Computing (CC) is a new innovative model of sourcing the information and communication technologies (ICT) services required by firms for supporting their activities, so it is necessary to investigate the level of benefits that CC offers to firms, as well as their determinants. However, limited empirical research has been conducted in this direction. Our paper contributes to filling this research gap. It formulates a set of research hypotheses concerning the effects of firm’s ‘hard ICT capital’, and also some types of firm’s ‘soft ICT capital’, on the benefits offered by CC, having as theoretical foundation the ‘resource-based view’ theory. These research hypotheses are tested using data collected through a survey from 115 Greek firms, from which CC benefits regression models are estimated. It has been concluded that the sophistication of firm’s ICT infrastructure (an overall measure of firm’s hard ICT capital) has a positive impact on CC benefits. Furthermore, three of the examined types of soft ICT capital have been found to impact positively CC benefits: the information systems (IS) inter- connection/integration capability, the ICT strategic planning and alignment capability, and the internal relationship between firm’s ICT unit and business units. Our findings reveal some aspects of firm’s ICT capital that affect the generation of value from this new innovative CC paradigm, which can be useful to CC service providers, and also management and ICT firms’ practitioners and consultants