Valuestar N VN790/BS – that’s the name of the 3D PC that NEC today announced [JP] for the Japanese market. The company’s faster than expected: just last month, NEC teased such a machine in Tokyo, saying it’s likely to ship by October 2010. But Japan will get the PC as early as next month. And it appears to be a pretty cool machine.

Buyers will get a 20-inch 3D screen with 1,600×900 resolution and a Blu-ray drive to view content (images and video) stored in that format in 3D. NEC says for DVDs, users will be able to switch between 2D and 3D. Needless to say, the machine accepts 3D content in other forms, too (3D pictures from Fujifilm’s 3D camera, for camera).

Spec-wise, NEC throws in a Intel Mobile Core CPU (no details yet), 4GB RAM (8GB max.), a 1TB HDD, 3W×2ch speakers, and Windows 7 Home Premium 64bit as the OS. The main unit is sized at 490×362×169mm and weighs 8.6kg.

The PC also comes with a pair of glasses (an extra pair will set you back $67), a remote control, an integrated TV tuner, and a wireless keyboard.

NEC plans to start shipping the 3D set at the end of next month (price: $2,450). The company hasn’t said anything yet about international sales plans.