Answer: Cache memory and register memory are both types of temporary memory storage solutions, but they differ in their size, location and how they are used by the processor.

Cache Memory: Cache memory is a small, high-speed memory that stores the most frequently accessed data in the main memory of the computer. It is located between the CPU and the main memory and has a faster access time as compared to RAM or main memory. By storing frequently used instructions and data close to the processor, cache memory minimizes the time required to access data from the main memory, thereby improving the performance of the processor.

Register Memory: Register memory is another type of temporary memory that is built directly into the CPU. Registers are used to hold small amounts of data that are frequently accessed by the processor. Register memory is faster than cache memory and is used by the processor to fetch and store data during execution of instructions.The main difference between cache memory and register memory is in their size and location. Cache memory is larger and located farther away from the processor than register memory. Moreover, register memory is limited in size, typically ranging from 8 to 64 bits whereas cache memory can range from a few kilobytes to several megabytes. In terms of performance, both cache memory and register memory have a significant impact on a processor's performance. As mentioned earlier, cache memory reduces the time required to access data from the main memory and helps in faster processing of instructions. Conversely, register memory is faster than cache memory and is used for data storage during execution of instructions. The combination of both cache and register memory is aimed at providing faster processing to the processor.In summary, cache memory and register memory are both critical components of any processor, and their use is aimed at improving the performance of the processor.

References:

1. "Cache Memory." GeeksforGeeks, 24 May 2021, www.geeksforgeeks.org/cache-memory-in-computer-organization/.

2. "Register Memory." GeeksforGeeks, 18 May 2021, www.geeksforgeeks.org/register-memory-organization-in-computer-architecture/.