• Notice regarding image hosts and attachments. See here.

Mainboard Model MS-7356 and solid drive

 
Last edited:
stulid said:
Yep, the faster card slows down to the speed of the other, if your existing card looks the same as that Sapphire then maybe you do want it to look "the same" if viewed through a window.
Click to expand...

The faster card isn't slowed down to the speed of the slower card in CrossFire but it's possible it works more smoothly if the cards are clocked the same.
 
Subliminal Aura said:
It is dude :o
Click to expand...

stulid said:
Looking at this, the faster card may slow to the same speed.

http://www.tomshardware.com/forum/245454-33-crossfire-faqs
Click to expand...

A quick test for you now I'm back home.

2 x unlocked HD 6950.

For testing purposes I set one to 880MHz in the CCC, the other to 800MHz and then fired up the Heaven benchmark.

Guess what?

The first card ran at 880MHz and the second card at 800MHz.

So Tom's Hardware are wrong, certainly as far as any recent cards are concerned.

Maybe what they said was correct a few years ago when they first posted that information.

And Subliminal Aura, dude, you're wrong as well :p
 
Even a few google search hits say that the faster card is clocked slower, more sites beside Toms.

But it doesn't matter for the OP as Crossfire will work absolutely fine and will adjust as needed:)
 
stulid said:
Even a few google search hits say that the faster card is clocked slower, more sites beside Toms.

But it doesn't matter for the OP as Crossfire will work absolutely fine and will adjust as needed:)
Click to expand...

It doesn't need to adjust.

I've just done a test which proves it ;)
 
Surveyor said:
You can't do that.

Unless CrossFire is enabled first you can only alter the clocks on the first card.
Click to expand...

Now you've completely lost me !

If xfire is not enabled you can set the gpu frequencies independently of each other - I've done this in the past.

Once xfire is enabled the driver automatically clocks down or up so that the cards match. The frequencies must match for xfire to work or at least that is my understanding.
 
You must log in or register to reply here.
Back
Top Bottom