Video editing (maybe 3d editing, maya8) on an integrated video card slower rendering than Dedicated?

This may be a dumb question, but I was considering doing video editing and maybe doing some 3d modelling with Maya8 on a laptop..

I've been lookin at some units that have integrated intel 950 chipsets.. as well as some with go 7300 or go 7900 series cards or even x1400 ati cards..

Would I see a huge jump in video rendering speed in editing programs like Pinnacle Studio 10 if I have a 7300 series board (or 7300 vs 7900).. Same thing with Maya 8..

I'd like the unit to last me 3-4 years before I need another laptop or perhaps have the ability to upgrade the card (i guess only if the manufacturer comes out with a newer card that it supports down the road?)

Thanks for any tips on this one.

 

Not slower rendering, but it's well worth it for you to model with a dedicated card. Anything dedicated should be good, and I'd recommend at least an X1400/7400 for a 15" screen, and a faster card as you move up in screen sizes. Rendering 3D graphics or video rarely uses the graphics card (unless you do OpenGL rendering, which isn't as exact or nearly as nice looking), it primarily uses CPU speed and memory. You definitely want a full 2GB of RAM, and probably nothing slower than a T7200 processor.

 

Pita is 100% correct. You won't need an dedicated GPU for either video or 3D, since both tasks are handled primarily by the CPU. That being said, a dedicated GPU will help with 3D previews and HD video playback.

 

I would like to have suggestions about a notebook for video editing in high resolution using Studio 11 ultimate.
Possible solutions:

A) Dell Precision M6300 (or analogous models as HP 8710W)
Intell Core 2 T7700 2.4Ghz, 800, 4Mb
2.0GB, 667MHz DDR2 SDRAM (1 x 2048MB)
160GB (7,200rpm) SATA Hard Drive
256MB NVIDIA Picture FX 1600M Graphics Card
17,0 " UltraSharp Widescreen WUXGA (1920x1200)
Internal 8X DVD+/-RW
HP Professional, SP2

B) Dell Inspiron 1720 (or analogous models as HP 9585or Thoshiba X200-20W)
Intell Core 2 T7700 or (T7500) 2.40 (2,2)GHz, 800,4Mb
2.0GB 667 MHz DDR2 SDRAM (1x2048)
320GB, 5400RPM SATA Dual Hard Drive (2X160GB)
256MB DDR2, NVIDIA® GeForce Go 8600M GT
17,0 " UltraSharp Widescreen WUXGA (1920x1200)
Internal 8X DVD+/-RW
Vista Home Premium or Business (32Bit)
Questions
1) Is better two internal HD 5400rpm (solution B) or one HD 7200rpm eventually with a second external HD 7200rpm (solution A)?
2)XP Professional o Vista?
3) 2 GB RAM are enough or are necessary 4 GB?