Final answer:
The two technologies used to install multiple video cards in the same system are Nvidia SLI and AMD Crossfire.
Step-by-step explanation:
The two technologies used to install multiple video cards in the same system are Nvidia SLI (Scalable Link Interface) and AMD Crossfire. Both technologies allow for improved graphical performance by combining the power of multiple video cards to work together.
Nvidia SLI utilizes a physical connector called an SLI bridge to connect the video cards together, enabling them to synchronize their efforts and render graphics more efficiently.
AMD Crossfire uses a software-based approach to link the video cards together, allowing them to share the workload and enhance the overall graphical performance.
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