How are L1 cache L2 cache and L3 cache different?

Each one is larger, cheaper and slower than the next. L1 cache tends to be direct mapped and L2 tends to have higher associativity. I don't believe that any current processors use L3 cache yet, but...

Each one is larger, cheaper and slower than the next. L1 cache tends to be direct mapped and L2 tends to have higher associativity. I don't believe that any current processors use L3 cache yet, but...

L1 cache is physically next to the processing core and is implemented in SRAM, or Static RAM which is fast and constant when powered on. It does not require refresh cycles. It is generally split with...

A memory cache, sometimes called a cache store or RAM cache, is a portion of memory made of high-speed static RAM (SRAM) instead of the slower and cheaper dynamic RAM (DRAM) used for main memory....

Not the same.