1. As I understood correctly 3D memory used on pascal, it should be stacked right on top of the GPU core, but why in the picture where is the pascal module, there are 4 chips just beside the GPU die?
2. Isn't his 3D memory approach HMC and not HMB?
3. About nvlink, how can you get faster lane to the system meomry of 80GB bandwidth is the card is in slower PCI-E slot? Does it use some sorth of compression or what? Besides, does it help at all if you have slow DDR4 on the other end of the line not making even close to the 80GB bandwidth limit?