Bigger power supply needed for dual cards?

[dezzyfox55]

Hi there!
So here's my question: I would like to buy another video card for my PC and was wondering if it would require a bigger power supply. My motherboard is a Gigabyte GA-B85-HD3 and I have a 600W power supply. The current video card I have is a GeForce GTX 760 2GB. I was looking to buy possibly a 950 or 960 to add to it.
Also, I have 8GB of ram currently and was also wondering if I stuck another 16GB in if that would affect the power supply as well.
Thanks in advance!! =)

 

[Mousemonkey]

Why are you thinking of adding a 950 or 960?

 

[Sapphire Thunder]

I don't understand why you would run 760 AND one of those 2 in your system together.
You can't put them in SLI.

 

[dezzyfox55]

I've never had more than one card in a PC so I am still very new to this whole thing. I was just browsing cards and figured I'd buy a stronger card than the one I already have in it. What cards should I consider to run this in SLI?

 

[USAFRet]

I've never had more than one card in a PC so I am still very new to this whole thing. I was just browsing cards and figured I'd buy a stronger card than the one I already have in it. What cards should I consider to run this in SLI?

For SLI, you need one with the same chipset.

 

[Sapphire Thunder]

I've never had more than one card in a PC so I am still very new to this whole thing. I was just browsing cards and figured I'd buy a stronger card than the one I already have in it. What cards should I consider to run this in SLI?

NVidia's SLI and AMD's Crossfire (for the most part) require 2 same cards.

So for 760 SLI, you will need another 760.
For 960 SLI you will need multiple 960
And so on.

 

[dezzyfox55]

Ohh ok! I had no idea lol. So then if I bought another 760 would my power supply still be able to handle it?

 

[ko888]

The Gigabyte GA-B85-HD3 motherboard doesn't support SLI mode anyway so you'll be wasting your money.

 

[Sapphire Thunder]

Ohh ok! I had no idea lol. So then if I bought another 760 would my power supply still be able to handle it?

It wouldn't. You would require something like 750-850W PSU.

The Gigabyte GA-B85-HD3 motherboard doesn't support SLI mode anyway so you'll be wasting your money.

Also, this. You wouldn't be able to run it anyway.

 

[dezzyfox55]

Ahhhh I should have read that about it. I think I misread about the Crossfire. I suppose I will buy a better card next year to replace the 760

 

[Mousemonkey]

Ohh ok! I had no idea lol. So then if I bought another 760 would my power supply still be able to handle it?

It wouldn't. You would require something like 750-850W PSU.

The Gigabyte GA-B85-HD3 motherboard doesn't support SLI mode anyway so you'll be wasting your money.

Also, this. You wouldn't be able to run it anyway.

A good 600w PSU is more than enough, I was running SLi'd 560Ti's on a 620w PSU for a couple of years before I changed them. I'm still using the PSU though.