Maxwell and a sync compute

[jjohnthedon1]

Hi guys, so Iv heard a lot about the ashes of inoccent bench marks and the fury X smashing the Titan X and what not

 

but Iv also heard that nvdia cards have disabled async on there cards via the drivers 

 

Iv also read that maxwell cards don't have any async shaders at all

 

can anyone shed any light on the situation please 

 

and please use facts and proof 

this is not a flame war post of amd vs nvdia

[Guest Kloaked]

Nvidia will be supporting A-Sync via software, like Nvidia does with most of their performance optimizations anyways -- AMD does most of their performance stuff on the hardware side.

 

That's all I can tell you for sure. We don't have sufficient information to tell you which way it'll go.

[DocSwag]

AMD supports the stuff straight in their hardware. That's why they do Async Shading so well.

Nvidia does not support it in their hardware, so the only way they could support it is through drivers. I don't believe they have support for it in their drivers yet. However, I still think a hardware solution is better as the software solution could have overhead which never is good.

Of course, Pascal is coming soon, so we never know what it might bring.

[i_build_nanosuits]

http://www.pcgamesn.com/relax-nvidias-maxwell-gpus-can-do-dx12-asynchronous-shading-after-all

[jjohnthedon1]

2 minutes ago, DocSwag said:

AMD supports the stuff straight in their hardware. That's why they do Async Shading so well.

Nvidia does not support it in their hardware, so the only way they could support it is through drivers. I don't believe they have support for it in their drivers yet. However, I still think a hardware solution is better as the software solution could have overhead which never is good.

Of course, Pascal is coming soon, so we never know what it might bring.

I was thinking about the driver overhead but and already has higher driver overhead and there's also more room for driver overhead with dx12 because of the thread and core optimisation 

[xAcid9]

18 minutes ago, jjohnthedon1 said:

Hi guys, so Iv heard a lot about the ashes of inoccent bench marks and the fury X smashing the Titan X and what not

 

but Iv also heard that nvdia cards have disabled async on there cards via the drivers 

 

Iv also read that maxwell cards don't have any async shaders at all

 

can anyone shed any light on the situation please 

 

and please use facts and proof 

this is not a flame war post of amd vs nvdia

1. Yes hardware implementation of Async Compute is currently disabled in Nvidia driver.
2. Maxwell Gen2 have the hardware for Async Compute but scheduling is done from software side compare to all hardware on AMD GCN.

[DocSwag]

2 minutes ago, jjohnthedon1 said:

I was thinking about the driver overhead but and already has higher driver overhead and there's also more room for driver overhead with dx12 because of the thread and core optimisation 

Yeah but AMD has next to no driver overhead since they support it on the hardware level.

Having more driver overhead though would just get rid of the advantages DX12 brings...

I'm not completely sure, as Nvidia has just been confusing me a bunch with all their statements. Perhaps as more games come out with async support we can gain more information and everything will become clearer.

[jjohnthedon1]

3 minutes ago, xAcid9 said:

1. Yes hardware implementation of Async Compute is currently disabled in Nvidia driver.
2. Maxwell Gen2 have the hardware for Async Compute but scheduling is done from software side compare to all hardware on AMD GCN.

Are my msi 980tis gen 2 maxwell ? 

[xAcid9]

Just now, jjohnthedon1 said:

Are my msi 980tis gen 2 maxwell ? 

Gen2 Maxwell = Titan-X, 980 Ti, 980, 970, 960 and 950.

[jjohnthedon1]

7 minutes ago, xAcid9 said:

Gen2 Maxwell = Titan-X, 980 Ti, 980, 970, 960 and 950.

Ok so basically the do have async but just needs turning on in the drivers ? 

[MMKing]

25 minutes ago, Kloaked said:

Nvidia will be supporting A-Sync via software, like Nvidia does with most of their performance optimizations anyways -- AMD does most of their performance stuff on the hardware side.

 

That's all I can tell you for sure. We don't have sufficient information to tell you which way it'll go.

Nvidia has been making grand claims concerning A-sync for months. I will believe it when they deliver, and not one second sooner.

[Guest Kloaked]

1 minute ago, MMKing said:

Nvidia has been making grand claims concerning A-sync for months. I will believe it when they deliver, and not one second sooner.

They do a majority of their performance optimizations via software already. It's also shown in a demo somewhere that Maxwell is indeed capable of a-sync via software acceleration, which will only be as good as Nvidia can get it to work since it's software, compared to AMD's hardware support. 

[xAcid9]

1 minute ago, jjohnthedon1 said:

Ok so basically the do have async but just needs turning on in the drivers ? 

Yes but i think Nvidia will simply pay the dev for parity. /s

[Nena Trinity]

I hope Nvidia manage a small FPS boost with this but I doubt they can beat AMD at it...

[MMKing]

7 minutes ago, Kloaked said:

They do a majority of their performance optimizations via software already. It's also shown in a demo somewhere that Maxwell is indeed capable of a-sync via software acceleration, which will only be as good as Nvidia can get it to work since it's software, compared to AMD's hardware support. 

In an Nvidia controlled demo. But who the hell cares one bit about what either Nvidia or indeed AMD is able to accomplish in their in house demos? It's a representation of what their hardware is able to do in the most favorable of circumstances. It's not a representation of what is practically possible for a developer.

 

In addition, they have been talking about A-sync for months and now they even claimed they have done it but it's done enabled in driver. So i won't believe it before i have it.

[xAcid9]

What demo are you guys talking about?

[MMKing]

Just now, xAcid9 said:

What demo are you guys talking about?

I have no idea. His exact words were ''It's also shown in a demo somewhere''