What is the bus width for a Dual-Channel Memory configuration?

In a Dual-Channel Memory configuration, the bus width effectively doubles that of a single-channel configuration. A standard single-channel memory configuration typically has a 64-bit bus width, which means that it can transfer 64 bits of data at a time. When utilizing dual-channel memory, two channels work simultaneously, allowing for increased data transfer rates and improved performance.

This results in a combined bus width of 128 bits, as both channels can operate together to handle more data. This enhancement is particularly beneficial for tasks that require high memory bandwidth, such as gaming or video editing, because it allows for more efficient handling of the data being processed.

The other options represent bus widths that do not apply directly to standard dual-channel configurations. A bus width of 192 bits or 256 bits might pertain to configurations with even higher memory architectures or specialized systems, but they do not reflect the dual-channel architecture used in most consumer-level setups. Therefore, 128-bit is the correct answer representing the effective bus width for a Dual-Channel Memory configuration.