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Difference in GPU brands?

regulus

regulus

regulus

Soldato
Joined
18 Aug 2006
Posts
10,055
Location
ChCh, NZ
So I decided to hold on to the 5870 a bit longer and spice it up with Xfire. I have a 5870 Gigabyte. I'm about to buy an Asus 5870 from Jobe in the MM. I think I know the answer to this but I thought I'd ask the bright minds in this section of the forum;

Does it matter if the brands are difference in Xfire? Did some light Googling and some say yes, more says no.

What say OCUK? Does any 5870 work with any 5870 in Xfire?
 
I ran an Asus 5870 with a saphire 5870 with zero issues. They will work together no problems. Still a capable combo the 5870 xfire. :)
 
Does games to scale well with Xfire or are there a few dogs out there (such as Crysis I've heard) that doesn't like it?
 
I have had xfire for ages and have never had any real problems. Some games dont work with xfire - f1 2011 springs to mind. But u can just disable xfire and crack on. I never had an issue with crysis.
 
Cleeecooo said:
That's why i said with a few exceptions :p

Note; this is onl the case with AMD and only some of their cards. You can't xfire a 6850 and 6870
Click to expand...

You can't? I was under the impression that you could combine any of the same series of cards (if the first 2 digits are the same: 68xx, 57xx, 79xx, etc.).

The crossfire compatibility chart supports this.
 
On thing I forgot to ask. What's the minimum PSU I can get away with here. I got a 600 but meaning to upgrade anyway to something more lasting. However, for the very immediate future, would this work on a 600w?
 
Really? No way, thought it was way too low. Everywhere I read says it's too low.

I got a OCZ ModXStream Pro 600w, rest of specs as follow;

965 BE which I'll run at stock to help keep the volts down
Crosshair iii
4 gig RAM at stock.
1 HDD

and then the 5870 XF.

You sure 600 is enough for the moment?
 
Sorry, mobile version of link:
http://m.tweaktown.com/reviews/2943...870_graphics_card_in_crossfire_x/index14.html

Suggests 400w power consumption. I'd never recommend a 600w for someone who was going to get 5870x fire because that'd run at the PSUs peak capacity meaning little efficiency.

However, for you it's just temporary so it's fine (again, presuming the PSU is relatively new)

OD wait for a second opinion incase I am wrong. Another source also suggested that the power draw was nearly identical to a GTX295 so check that out too ;)
 
Well, according to the Thermaltake PSU calculator I need around 550w. Looks like if I take out my DVD/CD ROM drive (who still uses those?) it brings it down to the low 500's. Doesn't look like heavy PC overclocks make much of a difference on the PSU either.
 
I'd ignore the calculator :p

It kept suggesting 1200w for my computer (it can very easily run on 800)

It's a good reference point for newcomers to the PC building world, but nothing more :)

Also, there's a good 850w thermal take PSU for sale £50 delivered in the MM from Mr.May. There may be others aswell though, that one just caught my eye :)
 
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