Default Terrible Benchmark (GFX) on the Tab Pro 10.1

So I jsut did some benchmarking on the tab pro and most of them did good... until I tried out GFXBench... seriously all the benchkmarks were terrible and compared to the ipad air, the air was on a big advantage

The reason why this makes me wonder how is this possible is because the air and tab pro are pretty much alike when playing, I've seen them both in action and they play the same in almost every game so why does the air get much better results in the gfxbench while the tab pro has terrible result?