The tests were performed in a controlled air conditioned room with temperatures maintained at a constant 23c – a comfortable environment for the majority of people reading this.
Idle temperatures were measured after sitting at the desktop for 30 minutes. Load measurements were acquired by playing Crysis Warhead for 30 minutes and measuring the peak temperature. We also have included Furmark results, recording maximum temperatures throughout a 30 minute stress test. All fan settings were left on automatic.
The HIS HD6870 ICEQX cooler design is extremely proficient with the fan spinning between 870 rpm at idle, to just over 2,000 rpm at Furmark load (translates to a 30%-58% fan ratio).
When gaming, the card rest between 61c and 64c, considerably less than the reference design.
The effectiveness of the heatpipe implementation is apparent by the return to idle time of 17 seconds, one of the better results we have recorded in our labs. This is made even more impressive when the slow spinning fan is factored into the equation.