224 GB/s

  128 bit 

I love GPU differentiation, but this is one of those areas where Nvidia is justified shipping less VRAM. With less VRAM, you can use fewer memory controllers to push higher speeds on the same memory!

For instance, both the B50 and the RTX 2060 use GDDR6 memory. But the 2060 has a 192-bit memory bus, and enjoys ~336 GB/s bandwidth because of it.

Tell me again, how fast can you move data from system ram to vram?