Antutu is just a reference which tells nothing interesting. I put you an example. I have a tablet TI OMAP with ver old PowerVr 540. It just scores 11000 points. The truth is that is it runs games and emus better and faster than my RK3188 device that gives almost 21000. Both at the same resolution. So, don't trust benchmarks, they don't clarify how good or bad a device is.