Today Apple announced the next generation of their M-Series chips starting off with the M2 chip with better performance and more efficiency.
The M2 chip uses the new 5nm technology with 20 billion transistors. It is up to 25% faster than the M1 chip, Supports up to 24GB of Memory and has four performance cores and four efficiency cores. There's also support for up to 100GB/s of memory bandwidth. It also has a 10-core GPU and delivers better performance with more efficiency.
Apple claims the new chip is more efficient and that they took a focus on being more efficient than other chips in the industry.