difference between amd and intel
AMD processors are usually cheaper compared to Intel processors of the same architecture. The main rivalry between the companies is often boiled down to motherboards and processors. The primary difference between AMD and Intel motherboards is that they only accept the same kind of processor. Hence, an AMD motherboard would only work with an AMD processor, and likewise, an Intel motherboard will only work with an Intel processor, and not the other way around.
AMD uses a lot of slower cores and intel uses a few faster cores for better single core speed. Good Single core speed (like on intel) is generally better than a lot of slower cores(like on amd) in gaming so intel chips are usually a bit better and more effectively utilize the gpu which will result in better frame rates.
Pentium is the brand of processors that belong to Intel, while AMD sells the processors under the AMD name itself. The Pentium processor is a consumer-level product. It is placed higher than the low-end Atom and Celeron products but below the faster Core i3, i5, i7 and the Xeon processors.