Performance difference between mobile models having same chipset, RAM and OS
According to this article, One Plus 7 Pro scores higher than One Plus 7 in performance benchmarking. Looking at the specs I found that both the models have exactly same chipset, RAM and Operating System.
How can there be a difference in the performance in such a scenario? What other factors can affect the device's performance?
First of all, every empirical analysis is fragile to factors out of the modeling:
Every model of how things work is necessarily a sub-set of factors than the whole reality. For some fields, such as physics, we can model things with fairly security. Economics, on the other hand, have already discover than analytical approach is more appropriated.
Now, talking about devices, even the room temperature can affect a performance. The software installation may affect the benchmarking.
Also, I couldn't find the source code for the AnTuTu tool for Android. Therefore, we can't say how this experiment was conducted.