The GeForce Go 6400 was a mobile graphics chip by NVIDIA, launched on February 1st, 2006. Built on the 110 nm process, and based on the NV44 graphics processor, in its GF-GO6400SQ-N-A2 variant, the chip supports DirectX 9.0c. Since GeForce Go 6400 does not support DirectX 11 or DirectX 12, it might not be able to run all the latest games. The NV44 graphics processor is an average sized chip with a die area of 110 mm² and 75 million transistors. It features 4 pixel shaders and 3 vertex shaders, 4 texture mapping units, and 2 ROPs. Due to the lack of unified shaders you will not be able to run recent games at all (which require unified shader/DX10+ support). NVIDIA has paired 32 MB DDR memory with the GeForce Go 6400, which are connected using a 64-bit memory interface. The GPU is operating at a frequency of 400 MHz, memory is running at 350 MHz.
Its power draw is not exactly known. This device has no display connectivity, as it is not designed to have monitors connected to it. Rather it is intended for use in laptop/notebooks and will use the output of the host mobile device. GeForce Go 6400 is connected to the rest of the system using a PCI-Express 1.0 x16 interface.