Yet another PCB photo appeared with on it, a GPU seated. This time it is the GP104-400-A1 GPU which which would be the 3rd Pascal GPU surfacing, and kind of seems to confirm a 980 Ti successor, the interesting find here is that is has gDDR5X memory tied to it.
The GPU photo was posted over the weekend at wccftech and indeed is showing the new GDDR5X Memory. First, here's what we've been showing thus far in our tables, the GP104-200-A1 GPU we've already shown last week through a photo from Chiphell, however:
| NVIDIA GeForce | Possible name |
Pascal | Fab | Board | Date | |
| GTX Titan X | >> | TBD | GP 100 | 16nm | Reference -> AIB | TBD |
| GTX 980Ti | >> | GTX 1080 Ti | GP 104-400 | 16nm | Reference -> AIB | June/July |
| GTX 980 | >> | GTX 1080 | GP 104-200 | 16nm | Reference -> AIB | June |
| GTX 970 | >> | GTX 1070 | GP 104-150 | 16nm | AIB design | June |
| GTX 960 | >> | GTX 1060 | GP 106 | 16nm | AIB design | October |
| GTX 950 | >> | GTX 1050 | GP 106 | 16nm | AIB design | October |
As you can see there remains to be an indication for a GP 104-400 GPU. Whether that one ends up as GTX 1080 or GTX 1080 Ti remains unanswered, but the photo does confirm it's a revision 400 in existence. It could very well be that the GP104-200-A1 ends up as GeForce GTX 1070 and the GP104-400 GPU as GeForce GTX 1080. Both cards would get 8GB of graphics memory. Both GPUs hold roughly 8 Billion transistors.
The GP 104-400 GPU tied to GDDR5X DRAM memory is interesting as it does confirm that memory is available. GDDR5X is your standard GDDR5 memory however, opposed to delivering 32 byte/access to the memory cells, this is doubled up towards 64 byte/access. And that in theory could double up graphics card memory bandwidth. Early indications according to presentations show numbers with the memory capable of doing up-to 10 to 12 Gbps, and in the future 16 Gbps. So your high-end graphics cards these days hover at say 400 GB/s. With GDDR5X that could increase to 800 maybe 1000 GB/sec and thus these are very significant improvements.
Check the photo, these are unmistakably Micron GDDR5X DRAM ICs.
Nvidia Pascal GP104-400 GPU photo surfaces and shows GDDR5X Memory
