Does Asus P8Z77-M support 2 graphic cards?

[Loh Max]

my computer hardware
Intel i7-3770
16g ram
GTX 670
Motherboard=P8z77-M
Cooling master 750w bronze

I plan to add another graphic card for future gaming fps
my choice is GTX 780 as my second graphic card
my question is whether my motherboard support for this second graphic card or does it allow to add on another graphic card?
because im new in adding second card, and i realize the gtx 670 almost filled up my space on motherboard, i wonder where should i add on the second graphic card. I have zero knowledge on double graphic card.
Can i actually use GTX 670 and also GTX 780 on this motherboard?
any recommendation? thank you

 

[Loh Max]

Another question is whether 750w power supply enough for gtx 780 ? and can it supply 2 cards at the same time?

 

[drewhoo]

It depends on which model of the P8Z77-M you have. If you have the P8Z77-M Pro, then you could stick a GPU in each of the x16 slots. Take note: each slot would act like a x8 slot at that point, since that model of motherboard (and most LGA1155 motherboards) do not have 32 PCIe lanes.

I'm not terrifically familiar with SLI setups, but my impression is that in order to SLI, the GPUs need to be of the same model and preferably the same manufacturer.

The PSU would probably work, but what model is it? Some cheap PSUs will say 750W but they don't really mean it. Google "Newegg PSU Calculator" and enter your system specs to get a more precise number.

 

[Loh Max]

It depends on which model of the P8Z77-M you have. If you have the P8Z77-M Pro, then you could stick a GPU in each of the x16 slots. Take note: each slot would act like a x8 slot at that point, since that model of motherboard (and most LGA1155 motherboards) do not have 32 PCIe lanes.

I'm not terrifically familiar with SLI setups, but my impression is that in order to SLI, the GPUs need to be of the same model and preferably the same manufacturer.

The PSU would probably work, but what model is it? Some cheap PSUs will say 750W but they don't really mean it. Google "Newegg PSU Calculator" and enter your system specs to get a more precise number.

Its P8Z77-M without pro and yes , it is LGA1155 motherboards
for psu its GX 750W Cooler Master
Another question about 2 graphic cards performance, it make a big difference or maybe 30%?
can someone explain or give an example about the difference?

 

[drewhoo]

That motherboard does not list SLI support on its spec sheet. So I don't think that you can do a multi-gpu setup with that motherboard.