Sign in with
Sign up | Sign in
Your question

5830 + 5870 CF?

Last response: in Graphics & Displays
Share
April 12, 2010 3:58:56 PM

I've been offered a pair of nice cards, a 5830 + 5870. Will it be worth it, to put these two cards in a CF setup? Will it be performing close to the 5970?

More about : 5830 5870

April 12, 2010 4:21:54 PM

No! there is to much of a difference to put those two cards in crossfire. You are better of with the HD5870 by itself.
April 12, 2010 4:24:53 PM

Okay. What if I choose to buy a 5850 instead of the 5870, and pair it with the 5830? Is it still to weak?

And is it true, that the fastest card will underclock to the same speed as the slower one, just like RAM will do?
Related resources
April 12, 2010 4:38:34 PM

The 5830 and 5870 should CF just fine...they're the same cypress core, just different shaders. Get the 5830 to 5870 levels (in terms of core/memory), and you'd be fine.
April 12, 2010 10:11:05 PM

Perhaps even 2 5830's in X-Fire would do the job. Check out a few reviews of the 5830 on the web, as if you can overclock them a bit, they are right on par with the 5850 in terms of FPS and such (minus the obvious shader differences, etc...).
April 12, 2010 10:32:10 PM

You can crossfire them just fine, but its better to crossfire the same card. 2x5830's is a better option and will have less problems. 5830+5870 will be a little faster, but not enough faster most likely to be worth the hassle. if you got those 2 cards free, I would suggest selling the 5830 and either just sticking with the single 5870, or getting a second. Or even selling the 5870 and getting a second 5830. Heck- sell both and get 2x5850s! :-)
April 12, 2010 10:46:04 PM

+1 2nd 5830.

As you can see I have a mixed crossfire setup, only my 2 cards are more similar than yours.

I noticed no matter how much I overclocked my 4890 I wouldn't gain a single FPS. I bought it because at the time it was a $15 difference and I plan on selling my 4870 for a 2nd 4890.

You won't gain nearly enough to warrant a 5870 (besides non-crossfire games of course), save $150 and buy a 2nd 5830. That's still a killer setup.
April 12, 2010 11:00:33 PM

Just so you know, a 5830+5870 combo will perform the same as a 5830 crossfire combo. The 5870 will scale down to the 5830 level, IE it will only use 1120 shaders instead of the full 1600.
April 13, 2010 5:04:41 PM

Are you sure about that AMW1011? I haven't even heard that or been able to find any reference for it. I was told by an AMD rep that the 5750x5770 crossfire I thought about would be a little faster than 2x5750's, but would probably not work as smoothly as the 2x5750. I believe they clock the same, but I don't know about scaling the shaders and things.
April 13, 2010 5:11:44 PM

flyinfinni said:
You can crossfire them just fine, but its better to crossfire the same card. 2x5830's is a better option and will have less problems. 5830+5870 will be a little faster, but not enough faster most likely to be worth the hassle. if you got those 2 cards free, I would suggest selling the 5830 and either just sticking with the single 5870, or getting a second. Or even selling the 5870 and getting a second 5830. Heck- sell both and get 2x5850s! :-)


Best answer~ Gotta love those 5850s
April 13, 2010 7:17:57 PM

flyinfinni said:
Are you sure about that AMW1011? I haven't even heard that or been able to find any reference for it. I was told by an AMD rep that the 5750x5770 crossfire I thought about would be a little faster than 2x5750's, but would probably not work as smoothly as the 2x5750. I believe they clock the same, but I don't know about scaling the shaders and things.


No the shaders do not scale, you won't get any benefit from the faster card. The only benefit you have is that you are half way there to a dual 5870 setup.
April 13, 2010 7:28:31 PM

Right, which means, that the 5870 will render its alternate frame a little faster than the 5830 would, which can improve your frame rates a little, but can also cause extra micro-stutter type effects.
April 13, 2010 9:36:32 PM

No the frames cannot be rendered faster, it means the 5870 will do the same work as the 5830, both only using 1120 shaders.
April 14, 2010 9:19:51 PM

Okay, I think I'll just stick with a single card, then. Perhaps I'll gain some extra performance later by just saving the money now, and buying a kick-ass card later.

Thanks for your help!
April 14, 2010 9:49:43 PM

cool man- enjoy the single card:-)
!