Some months ago there were some rumors saying that the upcoming Qualcomm Snapdragon 810 thought for this 2015 year high-end smartphones had some overheating issues.
This was also one of the reasons why those rumors suggested the decision of Samsung to disregard this processor and use only their own Exynos in their Galaxy S6 and S6 Edge new 2015 series.
Well, today Tweakers.net (Dutch specialized site) was evaluating the HTC One M9 (which uses this 810 CPU), and discovered that when high-performance games as Asphalt 8 and Assassin’s Creed are running, the temperature of the M9 case gets much warm that the HTC competitors, in fact, up to 55,4°C.
You can see it in their thermal picture that they made:
It is true that the test was not done with the final SW Android OS build for the HTC One M9, but anyhow it doesn’t show very good perspective. There will be more high-smartphones using this high-end CPU on 2015, so if it is a real issue, we will see more reports like this one and users complaining in the coming months.
[Update x1: 26 March 2015]
After the shocking results shared by Tweakers.net couple weeks ago, HTC released a new Android OS build (claimed to be more stable and closer to the final release) where the temperature of the HTC One M9 is reduced by -13,7°C down to 41,7°C, something closer to its competitors:
The official details of what was exactly changed has not been officially disclosed by HTC, but pretty sure HTC reduced the processor performance (freq. clocks in some domains) in extreme cases as high demanding 3D games.
Now, we will have to wait for newer HTC One M9 benchmarkings using the tweaked new Android OS build, which still is not the final one, to see if it still can compete face-to-face against latest Samsung Exynos 7 or Apple A8.