Click here for an archive of Cramer's "Mad Money" recaps. Buy ATI Technologies ( ATYT) now and sell it in a month, Jim Cramer said on his "Mad Money" TV show Thursday evening. In 27 days, Microsoft ( MSFT) will launch the Xbox 360, and Cramer expects initial sales to be big. ATI makes graphics cards for the Xbox 360, and ATI's stock should spike on the console release, Cramer said. That's when you should ring the register. This trade isn't about fundamentals, it's about hype, said Cramer. There is nothing in the next 30 days that is going to make ATI any money. The orders from Microsoft already have been filled, he said. "It's OK ... to trade on hype as long as you're smart about it," said Cramer. The bank doesn't care if you make money on "the worst kind of hype." Be smart about buying, though, cautioned Cramer. Don't pay up for ATI's stock tomorrow morning. Wait for sellers to come in before buying, he said. A caller wanted to know if Microsoft would make money on its new Xbox because the first version wasn't a big win financially. Cramer said the first Xbox wasn't a big leap technologically over the other Japanese video game consoles. This time it's different. The new Xbox 360 is a "quantum leap over the other guys," he said. In addition, lots of games will be written this time for the new Xbox 360, which is key, said Cramer, who also believes Microsoft's new Vista PC operating system with "instant on" technology will be big. Cramer likes Microsoft for investment. He would buy some now and look to buy more if the stock falls.