Why are dual-channel memory controllers so much more popular than triple-channel memory controllers?

Dual-channel memory controllers are more popular than triple-channel controllers primarily due to their balance of performance, cost, and compatibility. Most consumer motherboards and processors are designed to support dual-channel configurations, making it easier for users to find compatible memory kits. Additionally, dual-channel setups provide sufficient bandwidth for most applications and gaming scenariOS, while triple-channel configurations offer diminishing returns and are often more complex to implement. This widespread compatibility and efficiency make dual-channel a more practical choice for the majority of users.