Fix for audio stutters in systems with R9s in Crossfire with VSync on its way

[Warsam71]

Hello everyone,

We have identified the root cause for the audio stutters in systems with 2 R9 290’s in Crossfire mode with VSync enabled.

We are planning to include this fix in an upcoming WHQL driver expected to be released in April; that being said, we are also aiming to include this fix in an earlier Beta driver that is slated for next month.

I will do my best to keep you informed on this topic by updating this post as we move into March, and will provide you the link to said driver.

Thank you very much for your patience

(And thanks to those of you who have sent me emails and private messages about this issue - very helpful)

 

[Warsam71]

Thanks. i'm interested to know this to. Mantle is sublime, The problem is i can't get it to work reliably over Medium settings, certainly not with anything more than Medium Texture settings.

I think its because my 2GB of vRam just isn't enough, even those with 3GB struggle to get it over High settings.

The thing is, My Tahiti LE can run BF4 all Ultra without MSAA and low Post AA at over 60 FPS, if it wasn't for the CPU pulling it down to ~50 in DX with 85% GPU usage in those places.

So, like many others, i just want to know a bit more about whats going on, what it is about whats causing this amount of vRam usage, whats being done about it, and a rough time frame.

Sam / Thracks?

Now that i have a taste of Mantle, I WANT MOAAAARRRRR.....

Got it, I'll check with Thracks and get back to you on this.

 

[Warsam71]

He hasn't set his trust account up.

I just looked up the Trust feature. It seems I don't "qualify" for it yet. I need to have 1000+ posts and be a member for 180 days (this one is covered already ) I'm going to contact the moderator in a moment.

 

[Warsam71]

Sorry to hijack thread Sam but have you any idea when us 7970/280x etc owners will be able to enjoy the fruits of your mantle labour?

Hello everyone,

We just updated the Mantle Known Issue page for the Catalyst 14.2 Beta driver (here is the link: http://support.amd.com/en-us/kb-articles/Pages/Mantle-Known-Issues.aspx).

It now elaborates on the support for the 280X:

"Mantle performance for the AMD Radeon™ HD 7000/HD 8000 Series GPUs and AMD Radeon™ R9 280X and R9 270X GPUs will be optimized for BattleField 4™ in future AMD Catalyst™ releases. These products will see limited gains in BattleField 4™ and AMD is currently investigating optimizations for them."