Low FPS with i7 2600k and 6950 CF

[mull54]

Low FPS with i7 2600k and 6950 CF

I get like average 20-25 fps on maximum settings with ubersampling set to on and with a res of 1920*1080. Is that normal or is there some kind of problem? I think i have all the patches installed and i have the lastest card drivers and CF is enabled in Catalyst.
What can i do to fix it?

My specs:
I7 2600k 3,4 GHZ
MSI 6950 Crossfire
8gb ram 1333mhz

 

[chiefje]

You have 2 6950's? I was about to say that it's normal with ubersampling, but with 2 of them in crossfire it isn't. Have you tried experimenting with the settings to see what slows it down the most?

 

[mull54]

Do you know how to monitor gpu usage in game? Maybe i can check if booth gpus have 90-100% usage and if they have that someting maybe is wrong with my card but if they have like 50% or one have 100% and the ohter one have 0% maybe there is just some issues with The Witcher 2 it self? And yes i have 2 6950's.

 

[CostinRaz]

I think there's poor optimization for ubersampling on AMD cards, Nvidia seem to run better, much better in fact.

Not sure what kind of PC can even run the Witcher 2 on a steady 60 fps with uber on, perhaps SLI GTX 590 with an i7-990x ( since the game does actually use all the cores effectively ), and even then I sorta doubt it

 

[mull54]

I got an average of 17fps on the first mission(the one you wake up in a tent with triss) That't not normal for my kind of computer even though it's bad optemized for amd cards.

 

[Anarki_Hunter]

The poor performance with AMD cards in crossfire, is due to the driver sets.

For some reason, the AMD driver releases keep having different driver sets and subsets each month. We had been following a person with nick 'TWL' on Guru3D forums, he's always been updating or hacking or modifying official drivers to keep the performance, quality stable. But lately he's been having personal problems...or just got bored with ATI/AMD driver teams jumping wildly.



Its all in the display drivers.

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Leaving that apart, the game also relies heavily on CPU... @Skill4Chill hows the performance if you overclock the CPU!.

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Why is the thread put up with a 'Solved' tag!, is it possible to also highlight the solved post?. Because it would be easy to know which post(s) was helpful in solving the query.

 

[Anarki_Hunter]

I got an average of 17fps on the first mission(the one you wake up in a tent with triss) That't not normal for my kind of computer even though it's bad optemized for amd cards.

I get around 17 FPS with a single AMD 6950 card with ubersampling, and I got a slower CPU..

CPU: AMD Phenom II X4 965 BE_C3 revision@2.7ghz_0.9875v

 

[mull54]

I just have an intel original cooler so i don't want to clock it but if you have a good tutorial i can try it out. So how can i solve this problem? It seems that i get the performance that i should get with one card. So i need to check if booth cards are being used, and how do i check that?

 

[drunknmunkey666]

Could it have anything to do with the profile-stuff in CCC?
I'm not an AMD-owner, so don't know how it works - but aren't there bits to be chosen for crossfire to work with TW2?

 

[mull54]

Can anyone confirm that you need to change something in catalyst?

 

[GuyNwah]

Do you know how to monitor gpu usage in game? Maybe i can check if booth gpus have 90-100% usage and if they have that someting maybe is wrong with my card but if they have like 50% or one have 100% and the ohter one have 0% maybe there is just some issues with The Witcher 2 it self? And yes i have 2 6950's.

Try RadeonPro. It has a nifty CrossfireX GPU usage display.

 

[mull54]

I now saw that booth graphic cards only uses aproximatly 50% each.I can send some Screenshots if you guys want? Anyone now how to i fix that?

 

[GuyNwah]

Well, if both graphics cards are working, then the problem isn't inability to get Crossfire going. It's more like the problem is keeping those texture-eating monsters fed. I'd start looking for things that are taking time away from your CPU.

 

[mull54]

Have you come up with something?

 

[drunknmunkey666]

Weren't there a similiar issue with SLI in TW2's early days? Something about dual NVidia cards only using 50%+50% .. I seem to remember some hex-digits floating around, which enabled bits in the SLI-profile so the two cards were used 100%+100%?

 

[chiefje]

Ok tested my rig, I have the same CPU, but a single 6870 at 940mhz and with everything on, inluding AA and ubersampling (which is not necessary) I get around 18 fps. It's playing like in slowmo, but other then that its fine.
So a better card + another better card should get you at least 30 fps I think. And my CPU is doing fine, its only using 4 of 8 threads by 50% and turbo is barely used.

Drivers might be the issue. Also you might want to turn everything to "application controlled" in CCC.

 

[GuyNwah]

Have you come up with something?

Actually, the ball's in your court: have you found anything that your PC is running that it shouldn't be running while you are trying to play the game?

 

[mull54]

But why doesen't my cards use at least 90%? When i'm looking at the ground the cards are under 90% load but when i'm looking up the cards go back to around 50% useage, weird!

 

[GuyNwah]

If they're not fed enough data to work with, they can't render what they're not given to render.

The data that the game is played with reside on disk. The data have to get from disk to memory to the cards. The CPU has to decide what data go to the cards.

If the CPU is doing something else and has to context-switch to run the game, it's going to be late. That's why I say, find out what else is running.

 

[mull54]

I downloaded gamebooster 3.0 and shut down all the running programs etc. But still no difference. I get 23000 on 3dmark vatange(cpu score on performance)