Per MHz integer performance of Apple A10 Fusion is twice that of Kryo 280 (snapdragon 835) and more thanks twice that of Snapdragon 821 I expect that lead only to go up with Apple A11.

Companies like google prefer nvidia tesla data centre cards rather than the GTX 1080. Also, if I remember correctly nvidia k80 has two GPUs in one card along with 12 Gb per GPU for a total of 24 Gb. These servers have 8 nvidia K80 per system. A lot of compute power.