Dragon Age: Inquisition - Mantle Unplayable

So is these games like BF4 where upon first startup, a Mantle cache is created using your current Mantle version? If it is like the BF4, is best to delete these cached mantle game files when changing Mantle drivers. If you don't, when you start the game with the new Mantle drivers, the new Mantle drivers will load using info from the older cached files (created with the old Mantle driver). This can maybe lead to performance issues/incompatibilities with the newer driver.

With BF4, deleting these cached files is no problem. New cached files will be created (using the new Mantle drivers) upon game restart.

I would maybe check and see if that is the case with these other games. Do they have cached Mantle files? Maybe try delete them. Just a thought...


P.S. BF4 Files I delete when upgrading Mantle driver are the 2 x MantlePipelinecache files found in Documents/ Battlefield 4/ cache folder.

 

Can you check in CCC for the mantle API and driver version numbers please.

 

Mantle driver version 9.1.10.0045
Mantle API version 98304

 

Hi bro, same here. I use only single card R9 290x and have problem running mantle where the game will randomly crash and CCC inform GPU temperature is high.

BF4, unplayable for me, getting 28 FPS. Don't what happen. This happen after I upgrade from 7970.

 

Hello, like all games supporting mantle, this one offers me lower framerate and visual quality than direct x.

I am playing in 2560 * 1080 with all the textures and maximum details out :
-With Directx : 45-50 solid and smooth fps (2 cards@80-85°)
-With Mantle : 30 fps average , 15min 40max. (2 cards@90-95°)

All Loadings in game are X2 longer with mantle enabled :-(

No crash after 3 hours of intensive playing at the moment.
i have seen 2 or 3 blinking textures during my trip in the environment but it's not annoying. i think it's a little bug from the game, not from drivers.

bye

 

When you upgraded card, did you uninstall the drivers and re-install? If not, suggest a DDU uninstall and reinstall latest drivers.

Also, did you delete the MantlePipelinecache files found in your Documents/Battlefield 4/cache folder? Best to delete these when upgrading card or mantle driver version. They will be recreated anew using the new Mantle version next time you start game.

 

Hey jaju I'm getting the exact same thing. I have an i7 3820 at 4.4ghz and 295x2 so the game is running perfectly at 60FPS yet the game is getting cpu spikes clearly visible on the frametime graphs every 5 secs, and it unacceptable stuttering even though 60FPS is easily achieved.

For reference BF4 runs like a dream - always has and never had any issues with mantle previously. I have spent a few hours tweaking but the spikes are CPU related, graphical changes don't affect this.

The other weird thing is mantle takes freaking AGES to load. When the api is set to DX11 I'm in the game in 5 seconds (its on my SSD). With mantle selected it even takes forever before the splash screen comes up. Before the level loads which takes like 5 minutes (it almost seems like the game crashes) and then it suddenly rights itself. Is anyone else getting this?

So does anyone know where the problem lies - is it with AMD's mantle/driver or is it the game dev?

 

I don't think it matters, ultimately. Reported the issue to both AMD and Bioware, and let's see if they ever fix it. Not holding breath, but also get fine FPS through DX11 so I'm not particularly upset. It is just strange how poorly the game performs under mantle.

 

Seeing the same thing here, and was looking all over the net for a thread confirming my suspissions that Mantle is broken in DA:I.

See my graphs below comparing mantle to DX11 (mantle on the left and dx11 on the right). This is on a 4770k with a 290 overclocked to 1100/1400, on the latest drivers (14.11.2).



Things I've tried to fix the problem (suggested for BF4 cpu spikes):
-disable pagefile
-disable HT
-setting thread.maxprocessorcount and processorcount to 8 or 4 (makes no difference)
-setting RenderDevice.RenderAheadLimit to 0 or 1 (makes the problem a lot worse)
-unparking CPU cores (makes no difference)

Guess we'll just have to wait for an official patch. Cannot believe AMD would mess up another Mantle game. :bang:

UPDATE: Set the texture quality to high and the stuttering disappeared. Guessing mantle just uses much more memory which causes stuttering (should be fixed in the next patch). :infinity:

 

Yep, it's very disappointing. Although the issue may be on Bioware's side. pcgameshardware.de talks of a patch that supposedly fixes the VRAM usage and CPU spikes. Really hoping that sorts things out, because mantle's reduced CPU usage helps, even on a 2600k.

 

Vram usage is definitely what is causing most of the stutter, as turning down some settings like Texture Quality, Tesselation, Post-processing, etc. help make the game less stuttery (much less CPU spikes).

 

Hmmm I just left it on ultra, I can check it again.

If you put in "render.drawscreeninfo 1" into the console though, it shows my VRAM usage only around 2.8GB, however... perhaps the reality is different, as I didn't use MSI afterburner or anything to check.

 

It might start there, but it will keep climbing up.

 

I dont understand some of these posts. Mantle runs smooth like butter for me.

I am glad AMD and Bioware worked together on this.

 

same here, although im not using crossfire.

its smooth, and i get about a 10fps uplift which is nice on ultra.

 

Is that a 10fps uplift when using Mantle vs DirectX Mac?

 

Mantle.

all ultra, fade textures, 2xAA, 1080p

30ish fps on DX11

40ish fps on Mantle.

 

When there aren't cpu spikes and texture streaming issues, mantle is really smooth, and it has a nice fps boost in areas where there are lots of characters on screen. But unfortunately, it seems the memory leak from BF4 has made its way to DA:I as well. It's pretty well documented around the net.

edit: also, the built-in benchmark is really awful. don't trust it.

 

is this memory leak only for CF?

i play for hours and hours, and dont have a single crash or massive ram usage.

 

How does your game work on Mantle AMDmatt? With 2x crossfire? Also the CPU spikes? BF4 is fine for me. Inquisiton is not. I think it's using an older frostbite version without the new patch.