On Basemark Taiji Free, character movement was smoother on the S4 Pro MDP/T than on the Asus Transformer Pad Infinity, which stuttered its way through the Taiji exercise.

The game Dead Trigger--which is optimized for Nvidia's Tegra 3--had smoother panning movements through the opening map on the Tegra 3-based Asus Transformer Pad Infinity than on the S4 Pro MDP/T. I also saw fewer antialiasing effects around the lines of the bridge, and more detail in the waves than on the S4 Pro tablet.

Another Tegra 3-optimized game, Riptide GP, lacked the screen splashes and some of the effects found when playing the game on Tegra 3 tablets; but I couldn't detect any significant speed differences in how the game performed between the S4 Pro and the Infinity.

My standard go-to test for any tablet is to load folders of high-resolution images to the tablet and see how the Google Gallery handles the images. Turns out the S4 Pro is a pro here: On the MDP/T, I slammed through some 100 images in an album, and watched the thumbnails redraw more quickly than on the Asus Infinity. I also found that there was no redraw lag as I zoomed in and out of images and panned around them. This kind of performance could be a huge boon for photographers and photo enthusiasts.

Another point that impressed: the camera's performance. I'm not talking about megapixels and image output, but rather the performance for image capture. When I fired up the camera, I immediately noticed that Qualcomm's talk about improving the camera on the S4 Pro wasn't just talk: The camera was more responsive than typical Android tablets at focusing, capturing the image once you press the capture button on-screen, and recycling to let you capture another image in quick succession. Often, the lag on that process can be interminable on Android tablets and renders those cameras frustrating to use.