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I don't have the answer to your problems but Resident Evil 5 scales pretty well in Crossfire.
I've just done a quick test with my two 6850's.
2560x1600, DX10, no AA and the fixed benchmark:
Single card 68.0fps
Crossfire 129.2fps
A 90% increase with the second card. Not too shabby.
How do you get profiles for radeon pro?
It's a shame CrossFire is so finicky. At least it's great once you know the tricks what works for such and such game. The only game left now I've to try and fix is rFactor. I may have to do a fresh install of rFactor to see as I've transfered the directory from a few in OS installs but the performance hadn't plummeted until I went CrossFire.
Sadly Direct Friendly AFR doesn't up the performance and my tvstyle is busted up. Parts missing, parts working for some unknown reason.
AMD have certainly been advertising that crossfire is the "ultimate" experience in performance. If anything it is the most ultimate experience of annoyance, frustration and disappointment.
rFactor works fine but the problem is generalised as what generation of cards used in CF is a big factor & you & don't have a sig & neither did you mention what cards your using.
I'm always late on a generation or at least a gen behind as the CF issues have been more ironed out on it.
I see people have CF issues on 6xxx in games that are perfectly fine with the 5xxx.
If people want the least hassle with CF then don't CF a new gen that has not been out long enough to mature.
It can be a great experience when it works but AMD's advertising for CrossFire stinks!
It's a shame AMD never took the Apple approach, "it just works" it really is annoying. Thank god for forums though. \o/
It is great when it does work but it's far from what it's advertised. You're led to believe get a second card, install, happy gaming. Look at Crysis2. ¬_¬ Had to wait for another driver or CAP's or don't wait and get Radeon Pro. A lot of tinkering.
It can be a great experience when it works but AMD's advertising for CrossFire stinks!
I'm on a set of 1GB 5870's. F1 2010 is flawless max settings, as is Ferrari Virtual Academy. Just rFactor the problems lie.
F1 2010 crashes with Quadfire 5970 & DX11 but is not a problem on dual, Quadfire works fine if forced to DX9.
rFactor has no problems for me in Quadfire 5970.
Yeah thats what I've read, DX11 CrossFire is a known crashing issue. People were telling others to set it to DX9 on the Codemasters forum. I had experienced it. Soon as you went on the track, it would eventually black screen or BSOD. As you said doesn't happen when set to DX9. To be honest I couldn't tell the difference between DX11 and 9 in F1 2010.
Thats not the problem though.
My fps was never a steady 60 in CrossFire. Fluctuating all over the place from 30 to 60's with one car on track at Brands Hatch and many others. With a single GPU it never fell below 60 no matter what track even with some tight tracks with lots of tree's/foliage and lots of cars on track.
Though I've yet to try a new install of rFactor.
What are OcUKs policy on returns?
Whilst they never promised anything AMD have certainly been advertising that crossfire is the "ultimate" experience in performance. If anything it is the most ultimate experience of annoyance, frustration and disappointment.
I've had the card for just under a week.
Catalyst 11.3 CAP 3
Red Faction 4 – Improves CrossFire performance
Need For Speed Shift 2 – Disables CrossFire and resolves image quality issues
Crysis 2 – Improves CrossFire performance and resolves flickering issues