I have 64GB on the MBP M1M and its M4M replacement is also sporting the same. 8GB in iPhone 15 PM, 16GB in M4 iPad Pro and the M1 iPad Pro that I passed on to my wife, and 8GB in the iPad mini 7.
The M4's single-core performance is between 14 and 21 percent faster than the M3s in our tests, and tests that use all the ...