It was previously reported that Nvidia has prepared two completely different public version designs for the GeForce RTX 4080, both equipped with GDDR6X memory, with capacities of 12GB and 16GB, respectively. Different PCB designs are used, 12GB video memory is a 10-layer PCB, and 16GB video memory is a 12-layer PCB. The bit width of the former is 192 bits, and the bit width of the latter is 256 bits.
MEGAsizeGPU said that the 12GB and 16GB versions of the GeForce RTX 4080 will be launched at the same time, and the relationship between the two is a bit like the GeForce GTX 1060 6GB and 3GB versions. This statement is not surprising, after all, there are 10GB and 12GB memory capacities on the GeForce RTX 3080 series.
In addition, Twitter user @kopite7kimi also provided the PCB design number of the GeForce RTX 4080 12GB, which is PG141-SKU340/341, which is quite different from the PG136/139-SKU360 of the GeForce RTX 4080 16GB. On the contrary, it is closer to the PG141-SKU336/337 of the GeForce RTX 4070. It has been speculated that the GeForce RTX 4080 12GB may feature the AD104 instead of the AD103 of the GeForce RTX 4080 16GB.