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[Gamasutra] Project CARS On AMD GPUs - Clarification - Page 4

post #31 of 38
Quote:
Originally Posted by Cybertox View Post

Still doesn't answer why the game performs much worse on AMD GPUs.

Looking at all the nVidia logo's in the game no answer is necessary.
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post #32 of 38
Quote:
Originally Posted by Unknownm View Post

Wow what a difference.

I bought this game over GTA V for my own B-day gift. First I notice was only one GPU was being used, this was with windows 8.1. After upgrading to Windows 10 and installed 15.4 (than 15.4.1) both drivers gave me the same results, only one GPU was being used. Just now switching the profile over to BF3 the framerate is almost double but menus and dash view flicker alot which is annoying


There is no win here, low frame rate with flicker free gameplay or fast frame rate with lots of flicker frown.gif

Should of bought GTA V IMO

I think it's because the game engine doesn't run well or was meant to run above 50hz which might explain flickering issues.
    
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post #33 of 38
Thread Starter 
Quote:
Originally Posted by Cybertox View Post

Still doesn't answer why the game performs much worse on AMD GPUs.

 

I'm pretty sure that those people who, some of which in this thread, actually have AMD GPUs in their systems and are playing the darn game in the first place instead of benchmarks are a testament that it is running quite fine on both companies GPUs.

 

I'm a put up or shut up person. And people who actually bought the game and are playing it on AMD GPUs aren't whining about it. Those that are benchmark babies only and refuse to purchase the game won't actually shut up. That is my experience with this debacle.

post #34 of 38
Quote:
Originally Posted by gamerguuy View Post


I think it's because the game engine doesn't run well or was meant to run above 50hz which might explain flickering issues.

I may enable 50hz fresh rate to test this (when I reboot). Limiting 50fps on 75hz FR has same flicker with bf3,bf4,bfh profiles

"f1_2014.exe" works pretty good without flicker and both gpu show activity , doesn't give me higher frame rate like bf profile but more fps.
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post #35 of 38
This whole thing started from some random guy claiming that pCARS was using GPU PhysX to do normal AI, physics etc. calculations and that was harming AMD's performance.

The claim of course caught on like wildfire because everyone loves a black and white good-evil story. Especially the slightly-above-console-peasant-knowledge users on /r/pcmasterrace.

The problem is that it's 100% false. The game does not use GPU PhysX at all. Many tests have proven this.
 
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post #36 of 38
Quote:
Originally Posted by Cybertox View Post

Still doesn't answer why the game performs much worse on AMD GPUs.

As someone who has an AMD GPU and is very interested in this game (currently playing Assetto Corsa) I actually think it kind of does answer the question.
My reading of it is that it is a driver issue, nothing sinister.
Let's revisit when AMD deliver their next driver update then all the conspiracy theorists can move on to their next target.
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post #37 of 38
Quote:
Originally Posted by ColonelBlimp View Post

As someone who has an AMD GPU and is very interested in this game (currently playing Assetto Corsa) I actually think it kind of does answer the question.
My reading of it is that it is a driver issue, nothing sinister.
Let's revisit when AMD deliver their next driver update then all the conspiracy theorists can move on to their next target.

I guess time will tell whether the drivers are the reason for the inferior performance on the AMD side.
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post #38 of 38
It flickers with BF3 profile or any other profile that uses AFR rendering. You can use the other crossfire rendering types and reduces the flicker while still using both GPUs but you only get a small gain compared to the almost double with AFR.
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