Graphics Card Compatibility

Correct Answer: Wattage requirement

The correct answer is 'Wattage requirement'. When upgrading a graphics card, the most important specification to check for power supply compatibility is the wattage requirement. Graphics cards, especially high-performance ones, can consume a significant amount of power. If the power supply doesn't provide enough wattage, the system may become unstable or fail to function properly. The other options are not relevant to power supply compatibility: 'Memory clock speed' refers to the speed at which the graphics card's memory operates. This doesn't affect power consumption significantly. 'CUDA core count' is specific to NVIDIA graphics cards and relates to processing power, not power consumption. 'Texture fill rate' is a measure of how quickly a graphics card can apply textures to 3D objects. It's not related to power requirements. Checking the wattage requirement ensures that Lisa's power supply can handle the new graphics card, preventing potential system issues or damage.

Correct Answer: Install a second graphics card and set up dual GPU configuration

Installing a second graphics card and setting up a dual GPU configuration, such as SLI (for NVIDIA) or CrossFire (for AMD), is the most suitable option for improving graphics performance on a gaming computer with two PCI Express x16 slots. This allows the two graphics cards to work together, splitting the graphics processing workload and providing a significant boost in performance. Removing the current graphics card and using integrated graphics would result in a substantial decrease in graphics performance, making it unsuitable for gaming. Installing a second graphics card without proper configuration would not yield the desired performance improvement, as the two cards would not be working together optimally. Connecting an external GPU might improve performance, but it is not the most suitable option when the motherboard already has two PCI Express x16 slots that can accommodate a dual GPU setup.

Correct Answer: Total wattage and power connectors of the power supply unit

When choosing a graphics card, it is crucial to consider the power supply unit's (PSU) total wattage and available power connectors. Graphics cards require a significant amount of power to function properly, and the PSU must be capable of supplying that power. If the PSU does not have enough wattage or the correct power connectors, the graphics card may not work or could cause system instability. The color of the graphics card is purely aesthetic and does not affect its performance. While brand compatibility with the processor is important, it is not directly related to the power requirements. The number of HDMI ports is a feature to consider but does not impact the power supply compatibility.