The Snapdragon 820 features Qualcomm's proprietary Kryo cores, and the quad-core CPU is partnered with the Adreno 530 CPU. Qualcomm has reportedly done a great job at enhancing its newest high-end chip to cut back on power requirements and offer improved thermal management. The Samsung Galaxy S7 will be released in February, according to the latest rumors.
Samsung has been testing different versions of the phone, sometimes using the Snapdragon 820 inside, and other times loading the device with the Exynos 8890. The latter could be the next Exynos chip that has been dubbed the M1, or Mongoose. There are still rumors that we will see a 5.2-inch model and a 5.8-inch variant of the Galaxy S7 next year, along with a model sporting 3GB of RAM and one with 4GB of the stuff. When it comes to the Samsung Galaxy S7, we are still in flux.