I have the AK620 Digital for an AMD Ryzen 5 7600x, which is sufficient for cooling and is enough for gaming.
With the Ryzen 7 9800X3D that you bought for gaming, I think the water cooling makes more sense.

@DiGITEC.CH: Is it just me or can't I change my own answers?

@ FARINELI As I can't edit my 1st comment, I'll add to it here: in any case, if you're gaming, it's your GPU that's going to heat up the most. But I'm not a gaming specialist...

Your question isn't clear. I presume there's a gap between the liquid and the fan. So I have the AK620 fan on an Intel I7-13700 and a temperature of 36° at the moment. It all depends on what you do with your computer, games or not... in this case I don't play games but I do a bit of video editing with Davinci Resolve Studio and a fan is more than enough! It's up to you, but if you're gaming a QUALITY liquid system (to avoid liquid leaking onto your card...) is certainly the best choice.