What's the difference between a T42 vs. T42p?

[felixportes]

One of the difference is the video memory T42p = 128mb
What other difference is there?

[csv96]

Besides just video memory, the T42p comes with the ATI Mobility FireGL T2 video card. The T42 comes with the ATI Mobility Radeon 9600. Essentially the same, but the FireGL is optimized for 3D applications.

Also, the T42p is available with 1.8ghz and 2.0ghz Dothan CPU's while the T42 is available with 1.5ghz Banias, and 1.7ghz, 1.8ghz, and 2.0ghz Dothan CPU's.