So... does the Snapdragon 810 overheat? Does the overheating limit the performance of the 810, as aggressive CPU throttling often kicks in to deal with the issue?
Yes to all of the above.
Need some evidence?
This article by the folks at Ars Technica goes pretty in-depth as to the SD 810's overheating issues.
They wrote, "In short, chips throttle, but the 810 throttles more than most, and it's severe enough that the 810 is actually slower than the 801 or 805 in some CPU-bound tasks over the long haul. The Exynos 7 Octa, which has similar specs on paper, is much better in practice."
It seems Qualcomm really did screwed it up with the Snapdragon 810. Well, why is that? Ewan Spence over at Forbes Tech has a pretty great write-up that I highly recommend.
Read it here:
http://www.forbes.com/sites/ewanspence/2015/04/27/apple-iphone-5s-qualcomm-snapdragon-810/
Highlights:
"Why has Qualcomm dropped the ball and rushed the weak Snapdragon 810 to market? Why are manufacturers having to choose between clocked performance, delays to release dates, or having to look for solutions outside of the until-now-reliable Qualcomm?
Because of Apple."
"By pushing iOS to 64-bit at the ‘wrong’ time in Qualcomm’s product cycle, Apple created a fork of grandmaster proportions for the competition to deal with. Qualcomm’s new-design 64-bit chip (now labelled the Snapdragon 820) will not be generally available in handsets until the first half of 2016, so the manufacturers had to choose; stick with their roadmaps and release a 64-bit handset years down the line (handling a marketing advantage to Apple), or to do what Android does best and play ‘Specifications Trumps’ by matching the 64-bit marketing machine with solutions that had a hint of the MacGyver about them (handing a technical advantage to Apple)."
"Not only did Apple’s move increase the potency of the iPhone, it bounced Google into rushing the 64-bit version of Android, it pushed Qualcomm to disrupt its product roadmap, and it weakened the Android handsets going on sale during 2015."
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