An FPGA would make it much more generic a product so you can sell to more markets. But you would loose a factor 200 (a factor 1000 with traditional FPGA design)

An FPGA would make it much more generic a product so you can sell to more markets. But you would loose a factor 200 (a factor 1000 with traditional FPGA design) to make transistors reconfigurable. If you leave the wafer intact, you get 70,000 mm2. Cerebras cut off almost half of the wafer. At 7nm you would get 2.7 trillon transistors with 300mm wafers, more with 450 mm wafers. You disable those reticle-sized areas with impurities or damage at runtime. You can cool it with immersive liquid cooling. Instead of wire bonding you can stack chips on top or use free space optics [1]. [1] https://www.youtube.com/watch?v=7hWWyuesmhs https://www.youtube.com/watch?v=7hWWyuesmhs