The ZTE Nubia Z9 is the first 1080p phone to outperform the iPhone 6 in our toughest graphics benchmark

The test in question is GFXBench's Manhattan benchmark, which takes place on-screen, meaning that the resolution of the phone is taken into account, so you get a realistic indicator of performance in graphics-heavy apps and games. Resolution, precisely, has been a big determinant of success against the iPhone 6, as Apple's device is the only current flagship to offer 750 x 1334 pixels of resolution. Most competing handsets, for better or worse, have moved to Quad HD (1440 x 2560) resolution, though there are still those sticking to the more sane 1080 x 1920 pixels — like the Nubia Z9, the HTC One M9, and the Sony Xperia Z3+. In any case, it is the Qualcomm Snapdragon 810-toting Nubia Z9 that finally dethroned the iPhone 6, despite its higher resolution. Here's the proof:

Obviously, it's important to keep in mind that the iPhone 6 manages its result whilst running its GPU at considerably lower clock speeds to preserve power. And sure, our battery benchmark rated it at just 5 hours and 22 minutes, but this is more an issue of small cell capacity than anything else, as we've illustrated before. Still, in total terms the GPU does perform worse in the real world according to GFXBench's scoring rules, and so it's nice to see its Manhattan score finally topped.