900-2G503-0000-000 is a NVIDIA processing device.
This device provides the compute or control function for the system, with its interfaces and memory documented by the manufacturer.
It is used in embedded control and signal processing, where the part has to keep its specification over the life of the equipment.
On the bench, the parameters that decide the design are GPU Architecture NVIDIA Volta GV100 and CUDA Cores 5,120.
The data sheet fixes the tensor cores at 640.
The gpu boost clock is 1,530 MHz (SXM2 reference).
The reason to choose it is the fit between the specification and the function it performs on the board.