1090T bottlenecking a 7970?

RoflCopter4

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I bought a 7970 a few days ago to replace my 6870, as Skyrim was running horribly in my system, and I figured it was time for an upgrade. Problem is, Skyrim still runs horribly. In cities it slows down to 20fps. My GPU is barely working at all, and my 1090T stays at around 30% use in these outside areas. I can't figure out what the problem is. I don't think it should be bottlenecking the system, as the CPU is fast. Shogun 2 runs very nicely with no bottleneck. Can someone explain this? Should I return the card and pick up a 2600k, and revert to my 6870? I'm at a loss here.
 
Solution


here something to look at. keep in mind that each graph has a more powerful card so the one to look at is the fourth graph with the gtx 295. in some games that are...

RoflCopter4

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It is overclocked to 4.0 GHz. Like I said, Skyrim is the only game that seems to be having problems. Though to be honesty, I had to reinstall Windows so I've only really tested Skyrim and Shogun.
 

vitornob

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HD 7970: Bulldozer vs. Sandy Bridge vs. Nehalem
CPUs tested:
Bulldozer - Flagship AMD FX-8150
Sandy-bridge - i5-2500k
Nehalem - i7-920

I know that they didn't test your CPU in this review. But it's a nice idea to check how much you would gain using these CPUs with a HD7970.
Example, Skyrim, in 1920x1200, max details, 4x AA, a sandy-bridge deliver aprox. 50% more fps than bulldozer and aprox. 30% more fps than nehalem. (your cpu should be between bulldozer and nehalem, close to nehalem)
 

shanky887614

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wrong


most games cant use more than 4 cores


in other words 2 of the cores will be idle


cpu's with more than 4 cores are not designed for gamers and are designed for rendering/workstations


for example if all you do is game, a quad core is all you will need

if you do a lot of video encoding/transcoding, rendering .etc then it would be worth getting a cpu with more cores
 

jdwii

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Don't do that, The 1090 is enough for a 7970 its about equal to a 920. Skyrim is kinda a Skippy game from time to time. But if you want to later upgrade to ivy.
 

RoflCopter4

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I've decided to keep the card and my CPU for now. It does seem to run most games without issue. Can anyone explain why I'm having such problems with Skyrim? It runs horribly for no apparent reason.
 

diec4st

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Skyrim is a badly optimized game that is VERY dependent on your CPU. An overclocked 2500k with a decent video card (let's say a 6770) has no problem playing Skyrim. In GPU dependent games like BF3 you should have really smooth gameplay.
 

jdwii

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I play skyrim maxed out with my 1100t OC 3.9ghz and a 6950. And it feels smooth it skips at times(mainly in the city) but its pretty smooth and looks great.
 

RoflCopter4

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How on earth are you doing this? Mine will not run smoothly on any settings.
 

RoflCopter4

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I get 60 inside and in caves, 40 outside, and 20 in cities. It's awful. I just ran Battlefield 2 as well, and I was only getting 45. The GPU was only running at about 50%. There has to be a bottleneck.
 

cbrunnem

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hes not. simply as that. well he might for his definition of maxed out but generally maxing out a game is running at 1080p with everything turned up at 60fps. hes not getting those fps with that cpu. i have the same gpu and a total average in caves outdoors and cities i might be getting 60 fps only because im not in the cities much.

its been proven that there is cpu gains up to a 4.0 ghz sandy bridge in skyrim. it only uses two cores as well.



whats wrong is that his cpu is too slow.

 

chaosgs

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I cant believe all these people know so little. Im in the same shoes, with a 1055t. Have to OC it to 3.5 to get good frames on skyrim and BF3. It massively bottlenecks my 5850 crossfire so I know its bottlenecking you. My city frames are not as bad as yours though. Make sure you patch skyrim there is a new patch that makes it far smoother.

Your going to have to OC much harder lol, and than replace it in the near future. Also I always wandered if you underclock your cards so the bottleneck with the cpu becomes less and perhaps stabilizes the FPS. Just something I have been wandering.

PS 1055t = 3.4GHZ = 42 FPS/ 3.5GHZ = 50 FPS outside
Yeah the bottleneck is that big.