Any video card gurus awake ?
 

Is there a difference between DDR and DDR3 memory ?

I'm trying to figure out if these 2 cards are the same:

GeForce 6800 Ultra 256mb DDR and GeForce 6800 Ultra 256mb DDR3

any ideas ?

The difference between DDR, DDR-2, DDR-3 is mostly in differing supply voltages, different speed classes as well as some changes in the exact specification of the interface.


DDR: supply voltage VDD = 2.5 V
DDR-2: supply voltage VDD = 1.8 V
DDR-3: supply voltage VDD not yet standardized