Part of the blame is probably the 20 nm TSMC node that apparently had problems with leakage at higher voltages, but that's unlikely to be the only issue. I didn't bother running this test as long as I did for Snapdragon 800 and 805 because the events at the two and twelve minute marks tell you everything you need to know. After twelve minutes the A57s are just shut off entirely, and you're left with a cluster of 4 A53 cores at 1.44GHz.

Meanwhile, Snapdragon 808 can only keep its two A57 cores at their peak frequency for two minutes before throttling both down to 633MHz and putting the A53s up to their peak 1.44GHz. The Snapdragon 805 in the Nexus 6 keeps all four cores at their max frequency for about twelve minutes before they all throttle down to 2GHz and remain there for nearly two hours.

The key points to get from the graphs above are that for some reason the Snapdragon 800 SoC in the Nexus 5 only ends up using 3 of its 4 cores most of the time, with the frequency on the other three Krait 400 cores oscillating between 1GHz and 1.6GHz. That should help the Snapdragon 820 steer clear of overheating concerns, which is something the 810 wasn't able to do. Here you will find the pros and cons of each chip, technical specs, and comprehensive tests in benchmarks, like AnTuTu and Geekbench. 40's the magic number for Qualcomm on its latest GPU as the manufacturer claims that. The new GPUs will be available within the forthcoming Snapdragon 820 and Snapdragon 620/618 processors. Efficiency is also being touted here, and according to Qualcomm, the improvements it made to the underlying architecture translate into nearly a third (30 percent) less power consumption. We compared two 4-core processors: Qualcomm Snapdragon 821 (with Adreno 530 graphics) and Snapdragon 820 (Adreno 530). The Adreno 530 is said by Qualcomm to feature several important upgrades over its predecessor, the Adreno 430. The first two GPUs to be available under the new architecture are the Adreno 530 and Adreno 510. Qualcomm officials have quoted 2x the performance of their previous gen Snapdragon 810 in single threaded throughput alone, which is a sizable gain. Qualcomm says it delivers up to twice the performance and twice the power efficiency of its predecessor, which is in fact an 8-core chip. More than just a speed bump and refresh of the Snapdragon 810, Qualcomm says it designed the Snapdragon 820 'from the ground up to be unlike anything else.' Behind that marketing spin is indeed an SoC with a custom 64-bit quad-core Kyro processor clocked at up to 2.2GHz. MojoKid writes: Qualcomm held an event in New York City today to demonstrate for the first time its highly anticipated Snapdragon 820 System-on-Chip (SoC).

Adreno 530 vs snapdragon 820