Anandtech published Samsung Galaxy S8 Showdown: Exynos 8895 vs. Snapdragon 835, Performance & Battery Life Tested A quote from the article:

The Samsung Galaxy S8's headline features are its edge-to-edge Infinity Display and striking new design. Of course it still comes packed with the latest hardware and technology like previous Galaxy phones, including iris recognition, wireless charging, and a flagship SoC. Actually, there are two different SoCs for the S8 and S8+. Most regions around the world will get Samsungs Exynos 8895, while regions that require a CDMA modem, such as the US and China, will get Qualcomms Snapdragon 835. Both SoCs are built on Samsungs 10nm LPE process and are paired with 4GB of LPDDR4 RAM and 64GB of UFS NAND.

While no market receives both types of phones through official channels, with the wonders of modern shipping, anyone with a bit of time and patience would have little trouble tracking down the out-of-region version of the phone. Consequently, for the nerdy among us, we simply have to ask: how do these dueling SoCs compare? Which SoC ? and consequently which phone ? is better?

Today we'll delve into the performance differences between the Snapdragon 835 and Exynos 8895 to help answer those questions. Well also see how well they work with the Galaxy S8's other hardware and software when we evaluate its system performance, gaming performance, and battery life.

 Samsung Galaxy S8 Showdown: Exynos 8895 vs. Snapdragon 835, Performance & Battery Life Tested @ Anandtech