It was with great fanfare that the Sony Xperia Z5 Premium was unveiled last week as the first smartphone to feature a 4K resolution screen. But as we told you earlier this morning, the 2160 x 3840 resolution is used for a limited number of applications . Other times, the screen features a 1080 x 1920 FHD resolution.Proof of this appears on the GFXBench benchmark site where the handset is listed as having an FHD screen. According to a report published today, the 4K screen will come in to play only when viewing videos and photos. Even when playing video games, the screen reverts back to a FHD resolution.Checking out the 3D Graphics performance of the Xperia Z5 Premium reveals that it runs at a lower frame rate than its siblings. The Sony Xperia Z5 Compact seems to have superior 3D Graphics performance, running at 37.8 fps during the Manhattan benchmark test. The Sony Xperia Z5 ran the test at a speed of 18.8 fps while the Xperia Z5 Premium tested at 18.7 fps.If all of this turns out to be true, will it change your mind about purchasing the Sony Xperia Z5 Premium?Thanks for the tip!via: Techgrapple