It looks like Hardware 4 will use the TSMC cutting edge 4/5 nm process, rather than the 7 nm process previously rumored.
This should allow a smaller chip with modest performance increase OR similar size chip with double the performance OR a bit larger chip with more than double performance, as compared with the 7nm process. Compared to Harware 3 it looks like Hardware 4 will be 5-10 times more powerful. Most of the gains will come from more processing units, although I would expect there to be minor architecture improvements as well.
This is major news.
Harware 4 cameras use four times the number of pixels as Hardware 3, so some performance is lost processing the extra pixels (but not 4x as only the NN layers near the input are affected by pixel count). So a single 4/5 nmm chip will be 2-3 times more powerful than the two chips on Hardware 3 combined. This allows larger NN and dual redundancy or much larger NN without redundancy.
It seems to me that Hardware 4 will be more than sufficient to run the NN for Level 5 FSD and Robotaxi.
This should allow a smaller chip with modest performance increase OR similar size chip with double the performance OR a bit larger chip with more than double performance, as compared with the 7nm process. Compared to Harware 3 it looks like Hardware 4 will be 5-10 times more powerful. Most of the gains will come from more processing units, although I would expect there to be minor architecture improvements as well.
This is major news.
Harware 4 cameras use four times the number of pixels as Hardware 3, so some performance is lost processing the extra pixels (but not 4x as only the NN layers near the input are affected by pixel count). So a single 4/5 nmm chip will be 2-3 times more powerful than the two chips on Hardware 3 combined. This allows larger NN and dual redundancy or much larger NN without redundancy.
It seems to me that Hardware 4 will be more than sufficient to run the NN for Level 5 FSD and Robotaxi.