Nvidia sent in an update on what they announced, it's all Tegra as Matt pointed out on his coverage:
• New $249 Asus tablet, equipped with a quad-core Tegra 3 mobile processor running Android’s Ice Cream Sandwich operating system.
• Asus’s Transformer Prime tablet, with Tegra 3, is available immediately with Ice Cream Sandwich. Earlier versions can be updated over the air.
• Tegra 3, by using the Splashtop app, can remotely connect to a GeForce GTX-based gaming PC and play the world’s most sophisticated titles like Skyrim.
• The Tegra 3 processor sports three innovations:
o A fifth ninja core, which draws very little power and is able to run background and ordinary tasks with little impact on battery life
o PRISM, a power-saving backlight technology that can cut backlight power consumption by up to 40 percent by modulating the backlight per pixel, frame and scene.
o DirectTouch, which offloads much of the touch panel’s processing to just one of the CPU cores, enabling 6x faster touch processing, lower costs and lower power consumption.
• Tegra 3 is now powering some of the world’s best cars, including three being shown at CES by NVIDIA: the Tesla 3 sedan, the Audi A7 and the new Lamborghini Aventador.