What is the major distinguishing feature of cache memory compared to other types of memory?

Cache memory is primarily characterized by its ultra-fast speed and its specific purpose of storing frequently accessed data to enhance overall system performance. This high-speed memory is located closer to the CPU than other memory types, such as RAM or hard drives, which allows for quicker data retrieval and processing. By keeping critical data readily accessible, cache memory significantly reduces the time it takes for the CPU to access necessary information, thereby improving efficiency and system responsiveness.

The other options present attributes that do not align with the defining characteristics of cache memory. For example, while cache memory can be considered faster than RAM, it is not non-volatile like certain types of memory (though it is volatile). Additionally, cache memory does not possess a larger storage capacity compared to other memory types; in fact, it is typically much smaller in size due to its specialized function. Thus, the distinctive feature is its speed and role in optimizing access to frequently used data.