With most 2-in-1 laptops, you're giving up any hope of running games or other graphics-intensive apps -- if there are dedicated graphics at all, they're usually too slow for more than the basics. Lenovo thinks it can do better. It's unveiling the Yoga 720, and its 15-inch variant is supposedly the most powerful convertible in its class. Max it out and you can get a 4K display, a 7th-generation Core i7 processor and (most importantly) GeForce GTX 1050 graphics. It's still not a powerhouse, but it's uncommonly gaming-friendly for a PC that can double as a tablet.