I am on my third Mac now, a MacBook Air with Apple’s first M1 chip, which has served me well for about four and a half years. So if you are planning to buy a Mac in 2025, here are five things you should know before hitting the checkout button. I fell into the opposite trap with my M1 Air. I thought 8 GB RAM would be enough. 16 GB RAM should be the standard choice, because while you may not need it on day one, you will certainly appreciate it in year three or four.