Just when I was thinking the Kraken X40 would be tough to beat, NZXT kicks things up to those that can fit the 280mm radiator of the Kraken X60 in their chassis. Now I completely realize that the custom kits as well as the H220 can take on more components without any re-engineering or voiding the warranty, but as far as sealed AIOs are concerned, there is currently nothing on the market that can compare to the NZXT Kraken X60. While I know a lot of you are going to say that Corsair and others use fans that operate more silently than NZXT does, but for me, I want the best of the best, as long as it is somewhat affordable.
With no real boundaries from prior customer's complaints to cloud their judgment, NZXT released the hounds and came up with the best solution on the market. While it is slightly more expensive than the Corsair Hydro Series H110, I think it is worth every penny. So what if the fans get loud when you want to bench with this cooling solution on your CPU, you don't need that same amount of fan for normal use, and I honestly found silent mode more than sufficient, even if the temperatures were more level with the H110 at that point. Realistically, you are only asked to pay $8 more to gain software control that offers LED lighting control of the head unit, along with real time readouts, charts, and all controls are on the fly. I really don't see any real competition, the Kraken X60 is just that good.
If you do have room for a 140mm AIO cooling solution, I suggest you look no further than NZXT for your next purchase with at least the X40. If you have room for a dual 140mm radiator, like the X60 offers, the three degree drop in temperatures is well worth the roughly $37 increase in price. When compared to the Corsair Hydro Series, it isn't even a competition, there is really no reason to buy them now with the Kraken's on the loose. The best part of the whole thing is that during the testing, I only ran two fans that came with the kit. Imagine the fact that you can get a couple more degrees of thermal gains with two more fans, this could very well take on the custom kits and be able to obtain the best results on our charts.
I strongly suggest if your case is willing, go and grab a Kraken. If your case does not, I suggest you save a bit more and get a new case too, as the Kraken X60 may need a bit more room to do its thing, but it does one hell of a job at what it is designed to do.