1 month ago I bought a new Chromebook[1] with N4500 Celeron CPU that turns out to apparently be fanless (fanlessness is literally an unadvertised feature of this device). I'm typing this reply using it, with many dozens of browser tabs open, and it runs with nary a hiccup, and its battery life is insane (currently 13% battery w/estimated 2h35m operating time remaining, and based on my past experience that estimate is very credible).

[1] https://www.bestbuy.com/site/asus-17-3-chromebook-intel-cele...