nVidia GeForce4 MX460
An engineering sample of the GeForce 4 MX460. It features nVidia's stock cooler and is fully equipped with D-SUB, DVI and TV port. The MX460 is the fastest GeForce 4 MX of the breed. Could also get the MX 420 and 440 in 2002. Later models like the MX4000 and PCX4300 followed in 2003 and 2004 with the latter being a PCI Express card.
The GeForce 4 MX was launched in February 2002 along with various GeForce 4 Ti models. Both the MX and Ti are part of the GeForce 4 line-up, however, the GeForce 4 MX was basically an evolution of the GeForce 2 MX. It did have improvements various techniques to save on memory bandwidth and dual-monitor support but it lacked on vertex and pixel shaders which caused the card to be DirectX 7 compliant only. The GeForce 4 Ti is DirectX 8 compliant.
Unfortunately my card doesn't work properly due bad RAM. I wasn't able to benchmark it or to dump it's BIOS reliably.
The chip on my card is dated 48th week of 2001 which is a good 3 months before it's launch date. Also note that the chip says NV17 Pro, something that is also visible in the BIOS string.