X-Fire help

[nicehat]

Ok so I just picked up another 7950, installed it, threw on the bridge, went into catalyst center and told it to enable cross-fire X. So then I fire up Rome Total War II and I really dont experience any gain in performance. Its still kinda like a slide show, maybe a bit better than with one card. Is there something Im missing? 

[Jamdude]

Sounds like standard Crossfire, no improvement.  Rome Total War II does seem to have Crossfire compatibility so there should be some sort of improvement though.

 

What driver version are you using?  Entire thread about Crossfire in the game here (http://forums.totalwar.com/showthread.php/81551-AMD-releases-Fix-and-Performance-Upgrade-for-Crossfire-in-Rome-II/page20?s=6cd1a2df888180d0e5cfb40532b15c72) people are reporting that the 13.11 Beta 6 drivers helped.

[nicehat]

Crap. So I saw that there's a new beta driver that was released on 10/25 so I download the ccc uninstall utility from amd and run it. Next this I know, I lose my video signal and restarting doesn't seem to help. Any thoughts? Can I unplus the bridge to force it run on one card or do I need to physically take out the card from the slot

[AMICLG]

You can try to find a game hack that will let it use crossfire other than that there's not much you can do.

[TechFan@ic]

Rome II doesn't seem to support CrossfireX or SLI at this moment.

http://gamegpu.ru/rts-/-strategii/total-war-rome-ii-patch-2-test-gpu.html

[nicehat]

Damn it! Looks like I'll have to wait for that to happen then. I'll try tomb raider, hopefully I'll get some results from that

[Jamdude]

Rome II doesn't seem to support CrossfireX or SLI at this moment.

According to patch notes it does have Crossfire support http://www.tomshardware.com/news/amd-catalyst-13.10-beta-radeon,24157.html

[TechFan@ic]

According to patch notes it does have Crossfire support http://www.tomshardware.com/news/amd-catalyst-13.10-beta-radeon,24157.html

You have a crossfire setup, do you witness performance scaling ?

[Jamdude]

You have a crossfire setup, do you witness performance scaling ?

I used to have Crossfire but the scaling was almost alway awful, perhaps getting a 20-30% frame rate increase.

[nicehat]

Can someone explain to me how overclocking works in an x-fire setup? I have Trixx software that I use to OC but CCC doesnt report any increase in speed. Also, which card is the main card when in xfire

[TechFan@ic]

Can someone explain to me how overclocking works in an x-fire setup? I have Trixx software that I use to OC but CCC doesnt report any increase in speed. Also, which card is the main card when in xfire

You can switch between cards in MSI Afterburner, use GPU-Z to check for adjustments in clock speeds.

Usually the card in the first PCIe slot is the "master" card.

I have a Sapphire 7970 & Sapphire Trixx has been giving me issues, MSI Afterburner works flawlessly.

[Blake]

make sure you also download the latest crossfire profiles form game.amd.com