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Title: AMD performance drop in ETS2 and ATS
M@GOid 9 Mar 2019
After the 1.33 update, both games got a huge performance drop on my system. Up to 1.32, I could run the game at fixed 60FPS on roads and 50/60 FPS on the cities.

I updated the drivers from stable to Git version, but it didn't fix anything. Returned the game to the 1.32 version and the performance was back. But it did not seem to have much Windows users complaining about it.

Has anyone experienced a performance drop after the 1.33 update of theses games, particularly on AMD cards?
tuubi 9 Mar 2019
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The only thing I noticed is a performance drop after I upgraded from my old GTX 960 to the RX580. I guess their engine just runs better on Nvidia. I had to lower the settings a bit and it's still a bit stuttery (and glitchy).
tonR 11 Mar 2019
Quoting: M@GOidHas anyone experienced a performance drop after the 1.33 update of theses games, particularly on AMD cards?
My PC struggling with lights, drops to less than 5 FPS especially if I'm driving in the city full of streetlights at night.

FPS also drops if I'm driving near police cars' strobing lights. After I'm set g_disable_beacon 2 (to freeze the light), it's solved my problem a little bit.

Here's the video from SCS (at 1:48 min)
https://www.youtube.com/watch?v=19V0Xgx64hY&t=108
Leopard 12 Mar 2019
I experienced a similar sluggishness on Nvidia though. I'm still well above 60 fps on max settings but clearly there was a regression on 1.33.

So game is still playable for me but clearly regressed.

https://forum.scssoft.com/viewtopic.php?f=238&p=1107371#p1107371

Response of an ETS2 dev:

no need to bump anything, we are aware.
in 1.33 there was big improvement of buffer handling and some other things. it helped a lot to newer computers. to older comps not so, apparently.
in 1.34 there was almost no change on code-side, it was mainly content update.

do not expect any other rendering-based change until major rendering rewrite (DX11 support) will come.
then we will see, if api change could help us solve such issues.
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