Cooling Efficiency Tests

Radeon HD 4890

Here I would like to add that Thermaltake DuOrb Extreme and Thermalright T-Rad2 GTX were both tested with the VRM heatsink, because without it the temperature of VRM components was 30-35 °C higher than with it and easily past the 110-115 °C mark. We didn’t feel like risking the health of our graphics card at all. Thermaltake DuOrb Extreme was tested in three fan rotation speed modes: very quiet 1000 RPM, moderate acoustically comfortable 1550 RPM and maximum rotation speed of 2500 RPM.

Let’s take a look at the results:

In my opinion it makes absolutely no sense to compare the performance of Thermaltake DuOrb Extreme against that of the reference graphics card cooler, because these two solutions are totally incomparable in terms of generated noise (in DuOrb’s favor, of course). Therefore, we are going to pay primary attention to the competition between our today’s hero and Thermalright T-Rad2 GTX. So, the new solution yields to T-Rad2 GTX about 5 °C GPU temperature in very quiet fan mode of 1000 RPM. AT the same time, as soon as we increase the fans rotation speed to 1550 RPM the gap almost disappears. I would like to remind you that in this mode DuOrb Extreme remains a pretty quiet cooler even in this mode. And at the maximum speed of 2500 RPM the “double impact” cooler becomes a real “impact” for the high heat dissipation of the hot graphics card: it offers undefeated cooling efficiency for Radeon HD 4890. Even the howling reference cooler fan had to step back intimidated by Thermaltake DuOrb Extreme efficiency.