CPUs do have a cache (either L1, L2 or L3), but cache is not exclusively on the CPU.

L3 cache is located on the motherboard or in CPU housing.

Hope this help.

The Level 3 (L3) cache has the highest latency. The CPU cache is memory that is used to decrease the time that it takes the CPU to access data. Because the data is cached, it can be accessed more quickly. The CPU cache is often found directly on the CPU or built into the CPU. The L3 cache is usually larger than the L1 and L2 cache, but it is searched last. The CPU searches for data in the following order: L1 cache, L2 cache, L3 cache, RAM.

Many CPUs have what is known as a CPU cache. The function of this CPU cache is to speed up access to data.

The only memory on the CPU is cache memory and it is only dependent on the CPU type and generation you use.