That shared memory has two impacts on gaming. 1. It's usually much slower for the graphics or even incompatible with the game and 2. The memory access by the GPU can block the CPU access and you take a small but measurable hit in CPU speed.
I'm buying a new PC from dell and I have a choice of Integrated Nividia Geforce graphics card or a Geforce 128mb card. Which one is a better choice? What's the difference? Is it worth paying $60 to get the 128 one? Please Help!
p.s. I'm gonna be running Windows vista home premium