L3välimuistiin
L3välimuistiin refers to the Level 3 cache in a computer's central processing unit (CPU). Cache memory is a small, fast memory located on or very near the CPU that stores frequently used data and instructions. This allows the CPU to access this information much faster than it could from the main system memory (RAM). The L3 cache is the largest and slowest of the CPU's cache levels, designed to hold a wider range of data that might be needed. It is typically shared among all the cores of a multi-core processor. When the CPU needs a piece of data, it first checks the L1 cache, then the L2 cache, and finally the L3 cache before resorting to main memory. A larger or more efficient L3 cache can improve overall system performance, especially in tasks that involve large datasets or heavy multitasking, by reducing the time the CPU spends waiting for data. The size and architecture of the L3 cache are significant factors in determining a CPU's capabilities and price point.