Weird drop of FPS

I recently noticed a strange drop of FPS linked with AA.
Both on Warhammer I and II.

When I launch the test of performances, I get a miserable 17 FPS average on Warhammer I, where I used to have around 50. When I switch from AA 2x to FXAA, I jump to 70 FPS.

With Warhammer II, it is even weirdier : I get an average 44 FPS with AA 2x, if I switch to 4x and then revert back to 2X, I jump to 52 FPS. But if I stop the game, restart it and launch a new test, I'm back to 44 FPS.

I have changed nothing to my computer since the last time I played, just updated to the last Nvidia drivers.

I have honestly no idea what to do. It is not a drama , but I really wonder how it could happens.

What's your GPU?

It's true, I forgot to put my specs, sorry : Intel-Core i5-8500 3Ghz
RAM 8 Go
Nvidia 1070 8 Go

I'm not sure in that case. There were some FPS drop reported with NVidia latest drivers, but I think it was mostly for RTX series

What puzzle me more than just FPS drop (even if it is just with warhammer and no other games) is that I can gain (in performances test) 10 just by switching to AA 4x and then revert back to AA 2x. As if changing some options could say to my computer to use more ressources or something like that...

@Blackader
You should only update your graphics drivers when you're having specific unsolved performance issues and always check their stability-reliability first, on dedicated Tech sites.
You can try the App Data Fix in case your settings are just bugged. Click on my Sig and follow step 6 from the opening post. It's the same method for any TW title.
Also, are you aware of the latest problematic Microsoft's update? Are you using Win 10 ? if yes, just uninstall the following update: KB4482887.

I didn't know about problems of windows update, thanks.
What are they ?

As a rule, I confess that I let updates install automatically. Probably a mistake...

I forgot to say that, following advices on the forum, I put my warhammer files on my SSD, to avoid too long loading times.

Edit : I tried both methods (reinstalling directx after deleting script and uninstalling windows update) with no avail. I still have a 10FPS difference by just launching performances test, set AA to 4x, relaunch the test, and then go back to AA 2x. Odd enough, if I don't launch the test at every step, I do not have any FPS gain.

@Blackader

Try reverting to an earlier (pre 400.x) Nvidia driver. I'm using 399.24, and it fixed a similar slowdown for me on a fairly new machine (i7 -8086k; gtx 1080) when applying any level of msaa.

I found this solution by searching for anecdotes of similar performance drops... sorry I don't have a link for reference, it was likely either here, reddit, or guru3D.

Thanks for the advice. How I could revert to an earlier Nvidia driver ?

Quote:

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Originally Posted by Blackader

I didn't know about problems of windows update, thanks.
What are they ?
As a rule, I confess that I let updates install automatically. Probably a mistake...

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It's in the link I previously posted for you http://www.twcenter.net/forums/image...icons/wink.gif
Yeap, a big one actually...

Quote:

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Originally Posted by Blackader

Thanks for the advice. How I could revert to an earlier Nvidia driver ?

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1) Just grab the most stable previous driver release.
2) Clean unistall with DDU.
3) Install the driver of your choice.

Thanks again !

Edit : well, thank you very much, I revert to a 388 Nividia driver version, and no more FPS malarkey ! Very usefull and +rep ! Problem solved !

Quote:

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Originally Posted by Blackader

Thanks again !

Edit : well, thank you very much, I revert to a 388 Nividia driver version, and no more FPS malarkey ! Very usefull and +rep ! Problem solved !

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My pleasure :)