the power subsystem is made according to the scheme 8 + 2 phases (core / memory), although in reality there are 4 core phases, and they are connected via doublers ON Semiconductor NCP 81162.
Each doubled phase of the GP is based on a two-channel MOSFET SM7320 with NCP 81061 driver.
The NCP 81174 chip is used as the PWM control. The memory is powered by the Nikos PK616BA MOSFETs in the upper arm and the Nikos PK632BA in the lower arm. .....
An interesting fact is that exactly the same power configuration was used on a simpler class of graphics card MSI GeForce GTX 980 Gaming.