Well if it actually has 16GB it's going to be 256-bit memory controller, no other way that will actually work using an 8 x 2GB memory configuration. 8 x 32-bit memory controllers = 256-bit. The # of memory controllers has to match the # of chips on the PCB. If they do GDDR6X same as the RTX 3080, it would have 608GB/s using 19Gbps GDDR6X memory. Short of them doing 16 x 1GB configuration which I also doubt as that would make for a very crowded PCB layout. Also kinda rules out them putting them on the back of the PCB too as I don't think the backplate would provide enough cooling for GDDR6 or GDDR6X. Not to mention a 16 x 1GB memory config would end up being a 512-bit memory bus.