Apple's website notes the underlying technology behind the iPad Pro's desktop-class performance is a new storage controller that increases read and write speeds so that large files, such as 4K videos or RAW photos imported from an HD camera, can be opened much quicker.
"The A9X chip is capable of processing data so quickly, it demanded a new memory architecture.
iPad Pro features a revamped storage controller that helps deliver performance better than some desktop computers. This increases read and write speeds, so you can quickly open even the largest files. Like the big 4K movie you just edited or all the RAW images you imported from your HD camera."
Smart Keyboard and Apple Pencil for New iPad Pro
At the "Hey Siri" special event, Apple announced two brand new accessories for the newly-announced iPad Pro. The Smart Keyboard and Apple Pencil both allow iPad Pro users to have more tactile experiences for heavy-duty work that a touch-screen alone can't sustain, increasing productivity.
The Keyboard connects to the iPad Pro via a new magnetic port called the Smart Connector, which can transmit both data and power at the same time.
Because it connects directly to the iPad Pro, the Smart Keyboard does not require a separate battery, on/off switch, or Bluetooth pairing -- snap it on and it works automatically.
The Smart Keyboard works with the QuickType features in iOS 9, for quick access to word predictions and auto-correct.
Sensors inside the Apple Pencil allow it to detect its position on the iPad Pro's screen, tilt, and force, enabling pressure sensitivity. It also calculates both angle and orientation to produce both broad or shaded strokes, and it's precise enough that artists can touch a single pixel on the screen.
The Apple Pencil works with popular iOS apps like Mail, Notes, Procreate, Adobe Photoshop, and Office 365. The battery lasts for several hours and it's able to be recharged via the iPad Pro through a built-in Lightning connector.
Both the Apple Pencil and the Smart Keyboard are sold separately from the iPad Pro. The Apple Pencil will retail for $99, while the Smart Keyboard will retail for $169. Both accessories will be available for purchase in November alongside the iPad Pro.
from http://www.macrumors.com