A Level 3 (L3) cache is a specialized cache that that is used by the CPU and is usually built onto the motherboard and, in certain special processors, within the CPU module itself. It works together with the L1 and L2 cache to improve computer performance by preventing bottlenecks due to the fetch and execute cycle taking too long. The L3 cache feeds information to the L2 cache, which then forwards information to the L1 cache. Typically, its memory performance is slower compared to L2 cache, but is still faster than the main memory (RAM)