Xiaomi publicly compares the thermal performance of the upcoming REDMI K90 Max, against two major rival flagships
The device is expected to be released worldwide by Xiaomi 17t pro – but without the fan. The version of REDMI K90 Max with a fan that will be exclusively available in China, proves that the active air cooling system is not just a marketing gimmick, but a definitive leap in engineering for Smartphones.
The ultimate 144 Hz endurance test
The official broadcast on Xiaomi's Weibo account featured an exhaustive, continuous 2-hour session of a major MOBA game title.
The devices were locked to the demanding 144Hz refresh rate with the absolute highest graphics settings applied to push the hardware to its absolute limits. The results, as shown in the live telemetry graph, were staggering.
The opposing “device A” – probably the iQOO 15u – struggled to handle prolonged gaming load and exceeded the critical thermal limit of 37°C in just 13 minutes and completed the two-hour test in 40,0°CThe opposing “device B”—which could be the Honor Win — did slightly better, but still ended the session at 36,9°C.
The REDMI K90 Max, however, maintained the temperature at very low levels, powered by the active fan at 18,1 mm, along with the simulated swirl vents and metal guide vanes, the device never crossed the line of 37°C throughout the entire 120-minute test. Completed the heavy-duty test on the incredibly cool 34,8°C.
The impact on the market with cooling system improvements
This live demonstration fundamentally shifts market expectations. Maintaining temperatures below 35°C during an extreme graphics workload at 144 Hz, it means that the chipset Dimension 9500+ has zero thermal throttling.
For gamers, this guarantees perfectly stable frame rates without the screen brightness decreasing, the battery draining inefficiently, or the device frame becoming uncomfortable to hold due to temperature.
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