Apple Intelligence requires at least 8GB of DRAM to hold the GenAI models. This is because the A16 Bionic processor from the iPhone 14 Pro only has 6GB of DRAM, but a 17 TOPS neural engine, which is more than the M1 and M2 processors.
Apple Intelligence enhances Siri's capabilities by providing richer language understanding, personalized assistance, on-screen awareness, and the ability to take action across apps6. It also allows for typing requests to Siri and offers deep Apple product knowledge, making interactions more natural and efficient.