NVIDIA has expanded their mobile GPU offering with the launch of what they’re claiming to be the fastest notebook GPU ever, the GeForce GTX 580M.

The new GPU works internally at 620 MHz, accesses its 2 GB of GDDR5 memory at 3 GHz through a 256-bit interface, and features 384 processors running at 1,240 MHz. This chip supports DirectX 11, OpenGL 4.1, CUDA, PhysX, Optimus, 3D Vision, and two-way SLI technologies.

The first notebooks to feature the GeForce GTX 580M GPU will be Alienware M17x and M18x.

NVIDIA also introduced the GeForce GTX 570M GPU. This chip works internally at 535 MHz, accesses its GDDR5 memory (1.5 GB or 3 GB) at 3 GHz through a 192-bit interface, and features 336 processors running at 1,150 MHz. This chip also supports DirectX 11, CUDA, PhysX, and Optimus technologies. According to NVIDIA, the GeForce GTX 570M is already available on MSI’s GT780R notebook, as an optional part.