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GTX 590 - GTA IV - drops to <30 fps??

Last response: in Graphics & Displays
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August 17, 2011 1:18:35 AM

Firstly I want to give a big thank you to all the helpful people on tom's hardware forums, who have been helping me out ever since i got my new computer. I always come to these forums whenever i have an issue with anything at all, and i can feel comfortable knowing that within a few hours, a lot of kind, computer-smart people will post a reply to help me out with my problem. Every time so far, my issues have been fixed or at the very least been brought a lot closer to being fixed, because of your efforts. So thanks :) 

I've installed GTA IV recently on my computer, and installed the ICEnhancer mod, as well as the enhanced city textures mod. My frame rates for the most part hover around 45 - 50 sometimes going up to 60 at nighttime, but when i look towards the river where you can see the big city across the river or at other very specific points, my FPS drops to the low 30s and sometimes even goes to 26-28. I don't really understand why, as the game has both of the GTX 590 gpus at 96%-98% usage, and I don't think i have a bottleneck because my CPU is a core i7 2600k OC'ed to 3.8 ghz, and i have 8gb of RAM.

Now, I know i have the game modded to make it look quite a bit better, but i'm not sure if Icenhancer or the city textures mod actually make the game more demanding - should i be concerned about these frame rates?

thanks in advance :) 

More about : gtx 590 gta drops fps

a b U Graphics card
August 17, 2011 3:57:29 AM

enhanced city textures mod
Anything enhanced is logically better = more demanding. Also gta4 is one of the worst optimized ports to pc ever. The developers basically put 90% of the time for consoles.
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a b U Graphics card
August 18, 2011 7:17:44 AM

Yes the mods make the system more demanding. Some mods are written in a way that some video cards just can not handle them properly. I read someone that had the same mods as you using a GTX 580/i7 and was getting frame rates in the single digits. Slideshow! Those mods look great btw.
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a b U Graphics card
August 18, 2011 8:47:39 AM

As mute mentioned, it's an awful console port, a guy with SLI GTX 580 couldn't even run it 100% smooth.
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a b U Graphics card
August 18, 2011 11:07:48 AM

The solution to your problem is to turn down shadows from very high to high.Your fps will increase by nearly 15-20
Your fps will go down even more when it rains in the game.The parts where the game lags is the dawn at 4-6 AM and in the evening at around 7 30PM.I asked the moderator on gta 4 forums and he said that the hardware to run the game at 60 fps is not available.He also said that when rockstar games benched the game they had dual gtx 470s and they got 30 fps which according to them is playable.Just lower shadows to high and you will get a constant 50+ fps
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August 20, 2011 2:32:26 AM

Best answer selected by DTsoy.
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August 20, 2011 2:32:32 AM

thanks everyone :) 
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a c 271 U Graphics card
August 20, 2011 7:37:09 AM

This topic has been closed by Mousemonkey
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