670 and 650 sli?

[CastleEcho]

I have a 2gb gtx 670, gigabyte z77x-ud5h mobo, and an ocz zs 750w Psu. Could I add a 2gb gtx 650 for increaed performance. I mean if they have the same memory and core it should work right?

 

[abCasPeRR]

You need to SLi the same card. You cant SLI a 670 with a 650. You can use the 650 as a dedicated physx card but thats about it.

 

[bgrt]

You can use the GTX 650 as a dedicated PhysX card, which would leave your 670 free to process non-physics rendering. This configuration would work pretty well since the 650 is not too weak to bottleneck the 670 if it only processes PhysX and won't add too much to your overall power consumption. No need to get a 2GB version if you go with this though.

 

[CastleEcho]

You need to SLi the same card. You cant SLI a 670 with a 650. You can use the 650 as a dedicated physx card but thats about it.

http://www.geforce.com/hardware/technology/sli/faq#c16
It would suggest two cards with the same core could be SLI'ed. Both have the same kepler core, dont they?

 

[djangoringo]

First of all you can't sli 650 gtx cause it has no SLI bridge, second no they're kepler architecture but they're different gpus, different models, etc.
So no, only 670 gtx (no matter what brand).
You can put it has someone said as a physX card, no much gain thought just a waste of money.

 

[abCasPeRR]

http://www.geforce.com/hardware/technology/sli/faq#c16
It would suggest two cards with the same core could be SLI'ed. Both have the same kepler core, dont they?

No the keplar core doesnt matter. To SLI you need to do it with 2 of the same cards. They dont need to be the same brand though. Meaning you can SLI a MSI card with a EVGA card. As for the 650, if your still wanting to use it. Use it for a dedicated physx card if you play games that support it, and I dont think the 650 even has a SLI connector.

 

[CastleEcho]

No the keplar core doesnt matter. To SLI you need to do it with 2 of the same cards. They dont need to be the same brand though. Meaning you can SLI a MSI card with a EVGA card. As for the 650, if your still wanting to use it. Use it for a dedicated physx card if you play games that support it, and I dont think the 650 even has a SLI connector.

Alright thanks! how would one set this up though? Link maybe?

 

[CastleEcho]

Best answer selected by CastleEcho.

 

[abCasPeRR]

Alright thanks! how would one set this up though? Link maybe?

You just plug the 650 in, go to the NVIDIA control panel. And in the physx settings there will be a drop down box where you select your GPU that you want to run it.

 

[CastleEcho]

You just plug the 650 in, go to the NVIDIA control panel. And in the physx settings there will be a drop down box where you select your GPU that you want to run it.

And you think this is worth it?

 

[abCasPeRR]

And you think this is worth it?

Its worth it if you play games that use physx, if not then not it wont be worth it.

 

[CastleEcho]

Its worth it if you play games that use physx, if not then not it wont be worth it.

Ok thanks a bunch for the help!