Confirmed: iPad mini 4 Runs Overclocked A8 Processor With 2GB Of RAM

More than happy to be wrong about this:

We can confirm that the tablet uses a 1.5GHz Apple A8 with 2GB of RAM, which is faster than both the 1.4GHz A8 in the iPhone 6 and 6 Plus and the 1.3GHz A7 in the iPad Mini 2 and Mini 3.

iPad Mini 4 performance preview: A 1.5GHz Apple A8 with 2GB of RAM | Ars Technica

Refer to the link above for benchmark comparisons with the iPad Air 2, iPad mini 2/3, and iPhone 6, while remembering that the new Apple TV is also running an A8 processor and 2GB of RAM.