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Witcher 2 putting my CF 7970 onto its knees? - Page 10

post #91 of 144
Turn off AA. Make AF be no more then 8x.

AA suxxorz. Makes the images ridiculously blurry anyways. Good for text though.
post #92 of 144
Quote:
Originally Posted by Projector View Post

680 sli would easily handle ubersampling unlike the 7970s.

Gotta love fanboy "knowledge".
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post #93 of 144
Proof the person that posted just before you can do it.
Quote:
Yeah I run two 680's in SLI with everything maxxed, no exceptions, ubersampling on, and I get 50-70 FPS. No reason horsepower wise the 7970's should be much different, just drivers.
Go over to the 680 thread and ask anyone, they will tell you that it runs easily with ubersampling its just the 7970s drivers being utter crap as always. thumb.gif
post #94 of 144

If anyone is experiencing heavy stuttering with the W2, it really helped when I set flip queue size to 1 (for crossfire the value could be higher).

It can be done via RadeonPro.

 

Huuuuuge difference in terms of smoothness.


Edited by Evil Penguin - 4/22/12 at 5:02pm
post #95 of 144
Quote:
Originally Posted by james8 View Post

^no, that only applies to AMD. NVIDIA has no reported launch day problems with multi-card setups, at least in my recent memory.
also keep in mind that HD 7970s were launched last year.

You're forgetting the low gpu usage issue that the 400 series had. It was never fully fixed either. I came from two 470s and now have 6970s and couldn't be happier.
post #96 of 144
Quote:
Originally Posted by d-block View Post

You're forgetting the low gpu usage issue that the 400 series had. It was never fully fixed either. I came from two 470s and now have 6970s and couldn't be happier.

I guess it's a matter of taste, I moved from 2x HD6970's to 2x GTX580's and even though performance was just a bit higher, I was much happier with Nvidia and all games run smoother.

It's weird though unless drivers are still crap on the HD7970's, he should be easily seeing 99% usage most of the times on this game, at least I do on my 2x GTX680's even with my 2600k @ stock.
     
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post #97 of 144
Quote:
Originally Posted by Projector View Post

Proof the person that posted just before you can do it.
Quote:
Yeah I run two 680's in SLI with everything maxxed, no exceptions, ubersampling on, and I get 50-70 FPS. No reason horsepower wise the 7970's should be much different, just drivers.
Go over to the 680 thread and ask anyone, they will tell you that it runs easily with ubersampling its just the 7970s drivers being utter crap as always. thumb.gif

That's not proof, it's someone on the internet making a claim.
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post #98 of 144
Quote:
Originally Posted by d-block View Post

You're forgetting the low gpu usage issue that the 400 series had. It was never fully fixed either. I came from two 470s and now have 6970s and couldn't be happier.

acquired the game today.
did not have any usage issue or scaling problems with my sig rig. both cards are almost constantly maxed at 98-99% in heavy parts (but drops down to the high 80s in lighter scenes because i have vsync on)
turning off cinematic DOF helps a lot.
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post #99 of 144
Quote:
Originally Posted by Phantom_Dave View Post

Did you even check your cpu usage? If it was a cpu bottleneck your cpu usage would be at 100%.

I just want to point out that the above is a painful common misperception that gets spread around OCN ...and make no mistake ... when I say 'misperception', what I mean it's that it's total baloney.

The only time that you can be sure you're not CPU bottlenecked simply by virtue of seeing that your CPU usage is <100% is if you have a single core processor.

I can get a CPU bottleneck on Stalker games with my cpu at 12.5% usage ... because I have 8 threads available, and that game runs on only one.

Pretty sure Witcher 2 can use only 2 cores with any real efficiency (not positive, but if memory serves) , so if you have a 4 cores, you can probably expect to see some CPU BN kicking in somewhere in the 45-50% total CPU usage.

I'll also contribute to this thread ... I used to get this issue all the time in the TW2. Low FPS and Low GPU usage, esp. in certain areas, typically where there a lot of torches and fires and such. Trying to blame this problem purely on AMD drivers ... is also probably hogwash as well.

I'd check it for you now what I get in the same spot as you OP, but I'm waiting on the 10GB download ... you'll probably have to wait til AM cause I'm tired ...

My guess in this case is actually that the problem here could well be a CPU bottleneck in certain spots. But that's just a guess, and Phantom Dave has declared that impossible with his mathematical proof posted earlier, so I'm probably wrong thumb.gif
    
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post #100 of 144
Quote:
Originally Posted by brettjv View Post

I just want to point out that the above is a painful common misperception that gets spread around OCN ...and make no mistake ... when I say 'misperception', what I mean it's that it's total baloney.
The only time that you can be sure you're not CPU bottlenecked simply by virtue of seeing that your CPU usage is <100% is if you have a single core processor.
I can get a CPU bottleneck on Stalker games with my cpu at 12.5% usage ... because I have 8 threads available, and that game runs on only one.

No argument. It's only total baloney depending on how you interpret it. If the CPU is bottlenecking then all cores being used by the process will be at 100%. This is OC.net but people don't know how to check usage on multiple cores? Take a breath.

Quote:
Originally Posted by brettjv View Post

Pretty sure Witcher 2 can use only 2 cores with any real efficiency (not positive, but if memory serves) , so if you have a 4 cores, you can probably expect to see some CPU BN kicking in somewhere in the 45-50% total CPU usage.

A simple Google search would have been better than throwing around assumptions...

http://ve3d.ign.com/articles/news/59895/The-Witcher-2-Updated-FAQ
Quote:
The REDengine is built so players with two-core processors and min-spec machines will receive a fully enjoyable experience. Even more importantly, anyone with the recommended 4 cores and/or hyperthreading will see a visible improvement. 6 cores? 8? Cool! The Witcher 2 will make good use of them all.

Yeah, clearly a CPU bottleneck here. What was I thinking? If that link isn't reliable enough for you, do your own searching. It's all over the net.

Quote:
Originally Posted by brettjv View Post

I'll also contribute to this thread ... I used to get this issue all the time in the TW2. Low FPS and Low GPU usage, esp. in certain areas, typically where there a lot of torches and fires and such. Trying to blame this problem purely on AMD drivers ... is also probably hogwash as well.

I guess you skipped over this member's post and went straight for the assault:
http://www.overclock.net/t/1242447/witcher-2-putting-my-cf-7970-onto-its-knees/40#post_16974640

Quote:
Originally Posted by brettjv View Post

My guess in this case is actually that the problem here could well be a CPU bottleneck in certain spots. But that's just a guess, and Phantom Dave has declared that impossible with his mathematical proof posted earlier, so I'm probably wrong thumb.gif

Next time you decide to slander someone make sure you use solid evidence.
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