If you decided to spend a month's income for much of the US on a new Macbook Pro, you may have just bought yourself a brick full of crashes. Yes, that's right– if you use your computer to it's full potential it will lock up and crash on you.
This isn't the first time Apple has released a product without proper testing. They've had issues with yellow screens, batteries that seem to grow, distorted video, and more. This time, your computer simply stops working.
The issue seems to only be affecting those with AMD video cards. If you have integrated video, your computer shouldn't crash under load. Of course, it can't do much for video anyhow.