Nevertheless, we additionally tested Corsair H80 for further overclocking of our six-core CPU and learned that at 1650 RPM fan speed this system can have the CPU working stably at 4.45 GHz with 1.45625 V core voltage and 92°C peak core temperature:
Corsair H80 (1650 RPM x2)
Corsair H80 (2600 RPM x2)
There is another piece of evidence that the cooling efficiency of this liquid-cooling system is highly dependent on the radiator: when the CPU is overclocked to the same heights but the fan rotation speed is 2600 RPM, the CPU temperature is 12°C lower with 80°C being the peak temp. By the way, Thermalright Archon with two TY-140 fans at 1280 RPM doesn’t let the CPU temperature exceed 83°C while it is overclocked to the same speed and with the same core voltage setting.
At maximum rotation speed of its fans, Corsair H80 can let our test processor overclock to its maximum:
Although in this case the noise from the system is extremely high. We have already discussed it in our previous review, so please check it for more details and the results of the acoustic tests.
So, is Corsair H80 better than H100 or worse? In terms of cooling efficiency and at lower fan rotation speeds it is a little behind, but it offers much broader compatibility with the system cases. Besides, Corsair H80 is 20% cheaper than H100, and a difference like that may be very important for some users. Other than that these two cooling systems are practically the same and boast identical advantages (simple installation, compact size, affordability, super-high cooling efficiency at maximum fan speed, …) and identical shortcomings (high level of noise, aluminum radiator, lack of manual rotation speed adjustment option, …). And since they have so much in common it should be fairly easy to find the best model for your particular system case and processor. As for us, we still hope Corsair will continue to improve their Hyrdo series liquid-cooling systems and will eventually eliminate the issues we pointed out in our articles. We look forward to new products and will continue to keep you posted!