This is the Microsoft Surface Laptop Ultra with Nvidia RTX Spark

This shadowy render is the best glimpse Microsoft is giving us so far. | Image: Microsoft Once upon a time, Microsoft had to write off $900 million betting an Arm-based Nvidia chip could power its first flagship Windows portable, the original Microsoft Surface. But today, it's trying again.

Microsoft and Nvidia have just announced the Surface Laptop Ultra, a computer with a new Arm-based Nvidia chip at its core. There's a lot we don't know about the 15-inch Surface Laptop Ultra, such as its final specs or the foggiest idea of what it might cost.