content: It's way more powerful and efficient than anything from the early 2000's, and it comes with decent integrated graphics so you won't need a dedicated GPU if you just want a PC for basic tasks or simple games. Not to mention it has a cooler included and the B450 AM4 motherboards are dirt cheap. If you are on an extreme budget these APU's are great. Old CPU's are useless, because while you may get more cores/threads it is virtually impossible to get motherboards for them at a decent price. You also won't get DDR4, the boards might not have modern I/O and things like M.2 slots. Old CPU's will also get considerably more hot meaning a bigger more expensive cooler is required (which may not fit in mini ITX builds).