The Lenovo Yoga 13 is not a gaming Ultrabook. Don't expect to play high-end video games on it. It has an Intel 4000 video processor that will run many medium games. I thought I would check to see if it ran a Windows 8 game. Since I already did a demo of the Pinball FX2 on a desktop with a Nvidia 580, I thought I would try the exact same game on the Lenovo. Here's a video from a camera so you can see how well it runs.

This particular video process is installed in a LOT of Windows 8 tablets, so this might help you decide if it's enough power for your. The Lenovo runs at 1600 x 900. The systems that run at 1366 x 768 may run even better.