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Started By
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SLI problems
Posted on 11/23/16 at 12:43 pm
Posted on 11/23/16 at 12:43 pm
I recently installed a 2nd card in my machine and can't get games to utilize the GPUs. In 3d mark I get 100% utilization of both GPUs and get adequate results compared to similar system setups. In the Witcher 3 I get ~60% utilization on both cards and 60-80% on CPU. I've tried both soft and the new HB bridge and neither had an impact.
2
Posted on 11/23/16 at 12:58 pm to LSUSaintsHornets
Are you trying to use sli, gysnc and downsampling at the same time?
Last I checked, all 3 won't work at the same time.
What cpu do you have? Cpu % doesn't mean a whole lot on most games. If a game only uses 6 threads, your 8 core cpu won't be used to it's fullest.
Edit: Need more info.
Last I checked, all 3 won't work at the same time.
What cpu do you have? Cpu % doesn't mean a whole lot on most games. If a game only uses 6 threads, your 8 core cpu won't be used to it's fullest.
Edit: Need more info.
This post was edited on 11/23/16 at 1:02 pm
Posted on 11/23/16 at 1:00 pm to hoojy
quote:
Are you trying to use sli, gysnc and downsampling at the same time?
Only sli, playing on native 4k monitor.
quote:
What cpu do you have? Cpu % doesn't mean a whole lot on most games. If a game only uses 6 threads, your 8 core cpu won't be used to it's fullest.
4770k, haven't overclocked it yet tho.
Posted on 11/23/16 at 1:04 pm to LSUSaintsHornets
Some games scale better on sli/xfire than others.
Not experienced on dual cards due to poor scaling. Maybe TW3 doesn't scale as well as it should have. You might have to do some google-fu to see how well it scales. There have been more than few games that won't use both gpu's properly.
One thing to remember is that dx11 doesn't have native dual gpu support. It's nothing more than driver hacks by both vendors.
Not experienced on dual cards due to poor scaling. Maybe TW3 doesn't scale as well as it should have. You might have to do some google-fu to see how well it scales. There have been more than few games that won't use both gpu's properly.
One thing to remember is that dx11 doesn't have native dual gpu support. It's nothing more than driver hacks by both vendors.
This post was edited on 11/23/16 at 1:06 pm
Posted on 11/23/16 at 1:08 pm to hoojy
Although, I've never done sli/xfire due to problems. Maybe try to ask the pc thread. There are probably a few peeps who have more experience.
Posted on 11/23/16 at 1:10 pm to LSUSaintsHornets
What are your cards?
60-70 sounds right at 2160. That is what I get on GP102.
Edt:
What? No game utilizes the 6 cores. If you are seeing utilization of other threads it is from other processes.
Also scaling inside of 2 way is pretty decent, just not at launch. The Witcher 3 is highly optimized and an older title so it gets great scaling.
60-70 sounds right at 2160. That is what I get on GP102.
Edt:
quote:
If a game only uses 6 threads, your 8 core cpu won't be used to it's fullest
What? No game utilizes the 6 cores. If you are seeing utilization of other threads it is from other processes.
Also scaling inside of 2 way is pretty decent, just not at launch. The Witcher 3 is highly optimized and an older title so it gets great scaling.
This post was edited on 11/23/16 at 1:12 pm
Posted on 11/23/16 at 1:18 pm to LSU Coyote
quote:
0-70 sounds right at 2160. That is what I get on GP102.
I'd be fine with 60-70% if it got me to 60 fps. I'm sitting at 55 or so in Novigrad which is indistinguishable from a single card. It might be a CPU issue. Is there a better way to measure a CPU bottleneck?
Posted on 11/23/16 at 1:19 pm to LSU Coyote
Using=benefit.
LINK
Obviously IPC means much, but I didn't know the cpu op had.
LINK
Obviously IPC means much, but I didn't know the cpu op had.
This post was edited on 11/23/16 at 1:22 pm
Posted on 11/23/16 at 1:32 pm to LSUSaintsHornets
quote:
I'd be fine with 60-70% if it got me to 60 fps. I'm sitting at 55 or so in Novigrad which is indistinguishable from a single card. It might be a CPU issue. Is there a better way to measure a CPU bottleneck?
You never listed HW brother. List HW. Besides the 4770K which is much more than enough.
This post was edited on 11/23/16 at 1:33 pm
Posted on 11/23/16 at 1:35 pm to LSU Coyote
Yep. OP might have to overclock in some extreme cpu bound situations. Considering he has the gpus to carry the brunt.
Edit: considering= assuming.
Edit: considering= assuming.
This post was edited on 11/23/16 at 1:38 pm
Posted on 11/23/16 at 1:39 pm to LSU Coyote
quote:
You never listed HW brother.
2 titan xp
Posted on 11/23/16 at 1:40 pm to LSUSaintsHornets
Well that is what im getting with the same GPU set up when it comes to utilization.
Temps?
Temps?
Posted on 11/23/16 at 1:48 pm to LSU Coyote
85 and 72 peak
Posted on 11/23/16 at 1:49 pm to LSUSaintsHornets
Are you running the full "game works" gambit?
It's called gimp works for a reason.
It's called gimp works for a reason.
Posted on 11/23/16 at 1:53 pm to LSUSaintsHornets
card throttling at 83.
Do you hit 60 at times then it throttles down?
Do you hit 60 at times then it throttles down?
Posted on 11/23/16 at 1:55 pm to LSUSaintsHornets
Ok I discovered the problem. Turning off AA in Witcher 3 turned the GPU load to 100% and got the fps over 100. Guess it's a game specific issue.
This post was edited on 11/23/16 at 1:56 pm
Posted on 11/23/16 at 1:57 pm to LSUSaintsHornets
quote:
Ok I discovered the problem. Turning off AA in Witcher 3 turns the GPU load to 100 and gets the fps over 100. Guess it's a game specific issue.
Whoa.. lol
That shouldn't happen. I never had that problem and have played it since launch with 2x780 Tis, 2x980 Tis and now 2xTitan XPs.
Wonder if its a latest driver thing?
Posted on 11/23/16 at 1:57 pm to LSUSaintsHornets
How are the jaggies?
That seems weird. Even at 4k, I can easily see jaggies. That's even down sampled.
That seems weird. Even at 4k, I can easily see jaggies. That's even down sampled.
Posted on 11/23/16 at 1:59 pm to LSU Coyote
dp
This post was edited on 11/23/16 at 2:00 pm
Posted on 11/23/16 at 2:00 pm to LSU Coyote
I believe I've read an instance or two(maybe even on this game) where that's happened. Seems very weird.
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