IPAD PRO = 9.7-inch iPad Pro
IPAD 2017 = 9.7-inch iPad (5th Generation)
IPAD AIR 2 = 9.7-inch iPad Air 2
GEEKBENCH 4.1 OVERALL PROCESSOR PERFORMANCE
Geekbench is Primate Labs' cross-platform processor benchmark, with a scoring system that separates single-core and multi-core performance and workloads that simulate real-world scenarios. The Overall Score combines Integer, Floating-Point, and Memory Performance. (LONGER graph bar means FASTER)
GEEKBENCH 4.1 METAL COMPUTE
A GPU test was recently added to the iOS version of Geekbench which uses a suite of tests to measure Metal performance. (LONGER graph bar means FASTER)
GFXBENCH OPENGL T-REX
This is a graphics intensive animation of a T-Rex chasing a motocross rider. We selected Offscreen 1080p because Onscreen with V-Sync limited the iPads to 60 FPS. (LONGER graph bar means FASTER)
GFXBENCH OPENGL MANHATTAN
This animation is more demanding. And we selected Onscreen mode which means 2048x1536 in the case of the 9.7-inch iPads. (LONGER graph bar means FASTER)
WHAT DID WE LEARN?
If you want the fastest iPad, you will want to spend extra $$ for the iPad Pro. Plus the iPad Pro has other advantages to justify the added cost including better cameras, wide color (P3) display, and support for the Apple Pencil.