Cloud computing has transformed the way organizations manage and deploy their information technology infrastructure, providing on-demand access to a wide range of resources and services. Within the cloud ecosystem, OpenStack has emerged as a popular open-source platform for building and managing private and public clouds. Along with that, Software-Defined Network (SDN) has revolutionized network management, enabling flexible control and improved scalability. Consequently, the integration of SDN controllers within OpenStack environments offers enhanced network performance and resource management; the combination of cloud computing with SDN has been the focus of much study and practical implementation over the years. This study aims to compare and evaluate the network and system performance of two prominent SDN controllers, Tungsten Fabric and OpenDaylight when integrated into an OpenStack environment. The comparative analysis highlights their strengths and weaknesses, assisting administrators and researchers in making informed decisions when selecting an SDN controller for OpenStack systems.