It seems like the 9800 GTX and its offspring the GTS 250 have been around forever without much competition from ATI.  However, today ATI is introducing a card that should rectify that situation:  the HD 5770 1GB.  Decked out with GDDR5 memory and a mouth-watering price, this is a product that could take the sub-$200 market by storm.  Let’s see how it does.