Originally Posted by Mech0z;12481338
If I get a T420 with 4200M gfx and maybe a quadcore with higher clock than my current 2ghz duel core then yes it will be a big difference
The Intel HD 3000 graphics are about as good as ATi 5450 mobile graphics, so they're not really awesome for gaming but they're still a big increase over GMA HD graphics. BUT, there's no quad-core option for a T420, just i7 dual-core. Probably have to wait for Ivy Bridge for 35W quad-cores, so a T430 most likely would have a quad.
Originally Posted by Tator Tot;12485330
He has the name wrong. It's an nVidia GT 420m
It's a NVS card, which is a step under Quaddro but still business-class. Not sure it's speed exactly but for rendering and 3D modelling it'll outdo any similar consumer-grade card. Might actually be based off a GT 420M. http://www.nvidia.com/object/notebook-nvs.html
Found a little more info- the T420 will have a 1366x768 screen standard, and a 1600x900 optional. And the T520 goes up to 1920x1080, yum. Too bad there's no 5 pound T520s