This is a big upgrade. The 5 nm mode is not a half-step by any stretch, but it is the next "full node" after 7nm.
If we take TSMC at its word about the improved transistor density of the 5 nm process, we're looking at an incredible 15 billion transistors. That's more than all but the largest high-end desktop and server CPUs and GPUs. It's huge. It's so big that I wouldn't be entirely surprised if Apple shrunk the total chip area a bit to around 85 mm square and around 12.5 billion transistors.
According to the Geekbench scores, the iPhone 11 Pro has a 1330 single-core and 3436 multi-core score, while the MacBook Pro 15-inch (mid-2019 with the i9-9980HK) scored a 1135 single-core and 6872 multi-core. With the A14 improvements Jason Cross claims that the Geekbench multi-core score could be around 5000. Now for comparison, the MacBook Pro 15-inch (mid-2019 with the i7-9750H) scores 1037 single-core and 5141 multi-core. This would mean that the iPhone is approaching the same power as mainstream 6-core mobile processors.
What do you think? Will the next iPhone be as powerful as the 6-core 15-inch MacBook Pro? Let us know your thoughts in the comments below!