I need a quick quick answer..

[F i L]

Geforce MX4000:Is it for PCI-E or AGP???

 

[galdoes16]

AGP, I had one and it ran HL2 and UT2004 great.

 

[F i L]

And why Nvidia changed the name from Geforce 4 MX 4XX to Geforce MX4000?

 

[galdoes16]

I have no idea why.

 

[ameoba]

Just another chip/board revision. Some marketing guy probably thought it'd help sell units. As they say, however, you can't polish a turd.

 

[Sly]

And why Nvidia changed the name from Geforce 4 MX 4XX to Geforce MX4000?

The MX400 is a lowend GF2 everything else above it is a lowend GF4.

MX420 NV17 250 166 (128-bit)
MX440SE NV18 270 333 (64-bit)
MX 4000 NV18 275 400 (64-bit)
PCX 4300 NV19 275 333 (128-bit)
MX440 NV17 270 400 (128-bit)
MX440-8X NV18 275 500/511 (128-bit)
MX460 NV17 300 550 (128-bit)

Source

Surprisingly, the GeForce 4 MX line received a third update in 2004, with the PCX 4300

The legacy of the GF4 still lives on.