AIO’s don’t provide much benefit over high end air coolers (like noctua air coolers). The hyper 212 wouldn’t be considered high end.
You may notice better temperatures, but once the water in the loop heats up there’s very little difference between the two.
It’s hard to say whether the h80i would be better than a 212. I’d say yes, so it wouldn’t hurt to try the h80i and compare temps.
The main reason AIO’s are popular is because they’re relatively quiet once you replace the stock fans, they take up less space, and they look cool.
https://youtu.be/hr0qLLv3dKc (on mobile, not sure if this link will work).
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