CONCLUSION

   Having wrapped up all tests surrounding the KUHLER H2O 650 our final opinion is more of a positive one although we do have some concerns with the new design. On one hand thanks to the larger pump, the distance between the pump and the radiator and the newly developed 120mm fan the cooling efficiency of the KUHLER H2O 650 is quite excellent (for such a small liquid CPU cooler that is) as you can see from the charts especially if we take into consideration that it managed to come quite close to the much thicker (and dual fan) KUHLER H2O 920 so we can't really complain in terms of performance. However a single issue remains and that is the built-in 120mm which although quite good in terms of quality may fail sometime and if that happens then the only solution is for people to RMA the entire unit and that usually takes time. Of course in the end the fan may work without issues for years and we may feel silly for mentioning such a thing but the probability of something going wrong always exists so we need to mention it.

   Antec has just released their new KUHLER H2O line so naturally they are not widely available yet however from the few distributors that do have them the price tag of the 650 model seems to be set at around USD70 inside the USA and 60Euros inside the EU which means that it's priced roughly the same as many high-end CPU Air Coolers. Price and performance however are not everything and so also do remember that an AIO Liquid CPU Cooler takes a lot less space over the mainboard and thus has zero clearance issues with memory modules and graphics cards something which for me makes such solutions the number one choice. Long story short for very good performance paired with a small size and an very tempting price tag the latest KUHLER H2O 650 Liquid CPU Cooler by Antec walks away with our Golden Award.

PROS

- Build Quality
- Performance
- Zero Clearance Issues
- LED RGB Light
- Dual Fan Solution (For Extra Performance)
- Easy Installation
- 3 Years Warranty
- Price (For Some)

CONS

- Built-In Fan (Can't Be Replaced)