Can I use Gigabyte GeForce 400 Series GPU with 600 series on SLi

Can anyone guide me here to use two different series of Gigabyte Graphic Card on single board. I am having a Intel's board. I bought Gigabytes GeForce GV-N650D5 GPU. I am getting a old card from my friend. He is also going to buy a new one and want to sell his old. The card is GV-N430-2GI. I found similarity in the model. So just want to confirm can I use both of them on my system. Both are 2GB DDR3 graphic card. I am having a SLi bridge also. I did not tested the same yet, because I do not want to spoil any current settings.

Go on the official website of more specification. It is listed there then only you can use it. For connecting the bridge there is a connector on the card and I do not think 400 series card is having that. I am really not sure about the same. But on the official site you can locate the model and search for the card model. There yocu an find ample of information on the same. It is necessary that you must confirm that first and then later on go with the settings. According it is not possible with 400 series card. You must have some thing more latest.

Most of the card comes with that connectivity option. But GV-N430-2GI does not. I am having the same card and I using it from long time. It is always recommended that you must buy two identical Graphics card only that has SLi Ready listed in the specification. Only those card work well with each other. Or else it is just waste of money. You can keep that as spare if you want. In case your existing card stops working you can use it.