A thermal module less than half a millimeter in thickness. No fans. Thinner. Lighter. That's the Lenovo ThinkPad Helix for you. It's been a few months since the Helix convertible tablet was refreshed with Intel's Broadwell processor, otherwise known as Core M (the same processor used in Lenovo's Yoga 3 Pro), and the benefit is that it runs cooler than ever. So cool it might not even need a fan.