GeForce4 MX series products (NV17 chip) * GeForce 4 MX460 - 300 MHz core, 64 MBytes 275(550) MHz 128bit DDR memory.
* GeForce 4 MX440 - 270 MHz core, 64 MBytes 200(400) MHz 128bit DDR memory.
*
GeForce 4 MX420 - 250 MHz core, 64 MBytes 166 MHz 128bit SDR memory.
Note:
1.
GeForce4 MX doesn't and won't support pixel shaders.
2. GeForce4 MX will have MPEG2 hardware decoder and dynamic power management system, and the NV25 does not.
3. GeForce4 MX has only two fill pipelines, and GeForce4 Ti - four.
4. GeForce4 Ti has a superscalar (dual) T&L unit, GeForce4 MX has a single one.
5. GeForce4 Ti and GeForce4 MX have similar memory controllers (2x-channel one of the GeForce4 MX and a 4-channel one of the GeForce4 Ti).
6. Both chips have the same systems for increasing the memory effective bandwidth (Z buffer compression and fast Z clear, MSAA, HSR).
7. GeForce4 MX has 2 integrated LCD-panel controllers.
8. Both chips have two independent RAMDACs, CRTC controllers, and integrated TV-Out and DVI interfaces.
http://ixbtlabs.com/articles/gf4mx/