well, I am trying to find out that what makes ATI different from NVidia
both are good offer some diff balances,both have 256-bit interface,but nvidia is 512mb,but then again ati has 320stream processors to nvidia's 112,and has a more updated shader model and dx10,not only that but just look at the price, im really considerin the ati ,ecspecially now what i hear about the Total War* genre and nvidia's 8xx series probs,not only that but ati offers the ever popular catalst suite wich i personally like better than nvidia's video' sliders.
This is a very interesting topic as both companies have long been associated with high quality video cards.
I have used both. I prefer the ATI Control Panel interfece myself.
On a buyer standpoint, the priceerformance ratio is the difference ATI release more powerful Video Card with the price lower compare to its nvidia counterpart. One example is ATI 4670 to Nvidia's 9500