I've been jumping between iOS, windows phone and my one x and I can really tell you the three devices are a match in smoothness, the one x is equally rock solid 60fps thanks to the JB update finally android is a match, the one x get things done faster than both the iPad4 and 8x, ie in processing tasks rather than smoothness
I will download a .27 stock rom tonight I really hope the leap view lag is gone
It's funny while both nova 3 and asphalt 7 are insanely retina gorgeous n smooth on the ipad4 I have to wait for NFSMW and MC4 to be optimized for it, if ever, so you can see the optimization drama is not only limited to Tegra