4 ms·
Look at the 3090, which uses 24 chips (12 on one side and 12 on another). Pushing it to 32 is doable. 32 is all you need to reach 128GB VRAM with the 32Gbit GDD
by ryao 2y ago
Look at the 3090, which uses 24 chips (12 on one side and 12 on another). Pushing it to 32 is doable. 32 is all you need to reach 128GB VRAM with the 32Gbit GDDR7 chips that should be on the market in the near future.
- Numerlor 2y agoWhere would you route the connection to the additional 4 groups of chips around the die? The PCIe connection needs to be there too, and they also may not like power delivery going through them
- ryao 2y agoNvidia has done a 512-bit bus in the past. The 3090 has 4 groups of 3 on each side of the card. Switching to 4 groups of 4 should be doable visually. That said, I would not want to be the one responsible for doing the trace routing.