It's 90 nanometers.
The gap between BYD and Tesla is not only the motor energy consumption ratio, bearing transmission, but also the chip manufacturing process, BYD uses 90 nm, while Tesla is 7 nm.
SONY has a machine, the first generation of 90 nm process, although the use of cooling fans to increase the radiator, but still overheating caused high failure rate, the later use of 65 nm process, performance improved, power consumption reduced by half the radiator reduced, completely solve the problem of overheating.
Byd's chip is 90 nanometers, the price of the chip has long been mass production, BYD even if it does not rely on foreign enterprises, but also to ensure the production of chips. Do not think that because the car chip is 90 nm, its performance is not as good as foreign countries. This chip is not only one of the few automotive chips in China, but also the top existence in the world.