The 810 damaged Qualcomm when it turned out to run a little hot and caused Samsung to defect to its own Exynos 7420 processor instead. The new 820 is supposed to fix all these problems and be much better.
In fact Qualcomm showed a slide that indicates that the normalized power consumption of a Snapdragon 820 is 30 per cent less than the earlier 810 and could mean batteries last a third longer.
For mobile gaming, the 820 rendered 720-pixel resolution graphics and images on a loop. Qualcomm claims that the chipset’s Adreno 530 graphics processing unit will be 40 percent more power efficient than its 810 predecessor and have a 40 percent increase in performance. It also uses temporal, or time-based, antialiasing technology to smooth out the edges of graphics, further reducing pixelation.
The 820 chipset uses Qualcomm’s Quick Charge 3.0 technology which means that the phones will charge four times faster when compared to standard charging methods. It also supports wireless charging (on phones that offer it), as well as compatibility for devices sporting Micro-USB, USB Type-A and USB Type-C charging ports.
The 820 supports Cat-12 LTE technology and the 802.11 a/d Wi-Fi specification. Qualcomm claims the chip has a peak downlink rate of 600Mbps and an uplink rate of 150Mbps on LTE. This is faster than the 810, which had a 450Mbps downlink peak and a 50Mbps uplink peak. However this technology is more or less redundant as it is not supported by the carriers yet.
Tim McDonough, Qualcomm’s vice president of marketing, assures that the 820 was designed to run cooler than its previous iteration and to be better in general.
Its lower power consumptions, “means lower thermals,” said McDonough. “We attacked efficiency at every concernable level.”