Qualcomm launched the Qualcomm Snapdragon 820 back in 2015 that was to replace the Qualcomm Snapdragon 810 which was an octa-core processor.
Now the company has launched the next flagship processor called as the Qualcomm Snapdragon 821. The Qualcomm Snapdragon 821 promises 10% more faster performance compared to the Qualcomm Snapdragon 820. The Qualcomm Snapdragon 821 is having a 2.4GHz quad-core custom built 64-bit Qualcomm Kryo CPUs while the Snapdragon 820 is having just 2.2GHz. what GPU this processor will use is still unknown but we can expect it to use the Adreno 530 GPU. It ia having 600mbps X12LTE modem. It also supports 4K ultra HD resolution. The Qualcomm Snapdragon 821 supports the Qualcomm Quick Charge 3.0.