SLI question

[khani47]

Hello.

i have the EVGA GTX 570 Classified installed and can purchace a EVGA GTX 570.
how will the classified card perform alongside the 570.
(i read somewhere, the cards work on the lesser clocked rate), is this true?

thanks

 

[Gibbo3771]

xFire cards work even if they are on different clock speeds, SLI should be the same case and generally as long as it is the same chip it should be fine.

As in you can xFire a 7870Xt Tahiti with a 7950 Tahiti, different cards but it uses the same architecture.

Hopefuly someone can confirm or disagree, would be good to be certain.

 

[Gripen90]

SLi supports different clock speeds too. The nVidia drivers have supported individual speeds since 2009, so you are good to go.
Just as long as you use the same GPU and RAM size you can SLi different brands of nVidia cards.

 

[jkb]

I did similar with my old 260's when I ran a faster one with my original one in SLI without any issues.

 

[khani47]

brilliant,

next question is regarding the power source: i have the antec 750w truepower, will this be ok for 2 cards?

thanks

 

[Gibbo3771]

brilliant,

next question is regarding the power source: i have the antec 750w truepower, will this be ok for 2 cards?

thanks

Not the best PSU but yes it would be fine, if you are going to toss in more expensive cards later like 680's or 7950's then consider getting a better PSU.

How old is it? If it is ancient then it might be worth investing in a XFX or Seasonic one but it is going to set you back £70-£120 depending on model, by ancient I mean 4-5 years.

 

[khani47]

it is only 1 and half years old. i understand i will need a new psu because two cards will stretch the PSU, just wanted to check if it may be ok..

 

[Gregster]

That PSU will be fine.

 

[Gibbo3771]

it is only 1 and half years old. i understand i will need a new psu because two cards will stretch the PSU, just wanted to check if it may be ok..

It will be fine, 750 is good enough and the PSU is not that old so it should still be good, would be different if it was like, 3-4 years old and aged lol.

 

[EVGAdominik]

Hi, if the power supply can not support the setup for any reason it will shut down the whole system straight away when it is on full load, to protect it. When you face this issue the power supply is not good enough.

 

[Gibbo3771]

Hi, if the power supply can not support the setup for any reason it will shut down the whole system straight away when it is on full load, to protect it. When you face this issue the power supply is not good enough.

Depends on the power supply, cheapy ones don't have these specific safety features.