dx 12 help

[outwar6010]

I'm hearing online that new nvidia cards like my 970 don't support full dx12 and stuff asynchronous shader(explanation of what this is would be great). Can anyone chime in?

[kalniel]

DX12 is a plethora of methods for different effects and so on. No card supports all the possible methods described but this has no ill effect other than not accelerating a particular type of effect in hardware in the fastest way.

Asynchronous compute is just the idea of doing different types of operations asynchronously rather than synchronously. The 970 has some kind of support for it, whether natively or via software, but it doesn't yet appear to work very well. No games currently take advantage of it, jurys out on whether they will or not.

[outwar6010]

Thanks for the info. Someone posted one of those annotation spanish parody videos on reddit and it got me a little worried.

[NitrousX]

Nvidia has just announced that it will support Async Compute via a driver update. Obviously this is a software side implementation, so if you would like full DX12. I would wait until next when Nvidia and AMD launch their Pascal and Greenland GPU's.
For more info on the driver update see here http://www.dsogaming.com/news/nvidia...xide-confirms/

[jigger]

I think the GTX970 will be probably suffer a bit more than other Nvidia cards when it comes to asynchronous computing because of the cut back specs and amount of disabled SMM's. This plus the weird work around missing VRAM/crossbridge driver memory thingy, makes the card very questionable.

[ltron]

I'd say don't worry about it if you have a 970. If you are dissatisfied, buy the best you can afford next year which will probably be much more capable and compatible than what we have now. However, read on if you want to know more.

It basically speeds up things like post-processing effects and lighting massively as compute tasks can be done in parallel with other work. GCN i.e. AMD can do things out of order, which is faster and lower latency than Nvidia who do things in order and serially. This is also beneficial for Virtual reality. I'm not very clued up on the technical details, but that's my basic understanding of it. Feel free to correct me.

Nvidia have said they are working on a software solution to address their poor or non-existent performance when a game tries to use this feature, so we'll see whether this helps; however, AMD does all this in hardware which should always be superior to a software solution(and they have 8 Asynchronous Compute Engines that can each handle 8 queues at once, out of order).

As for games, there are rumours many games on consoles are in the works that use this to give up to a 30% performance boost on the weak GPU hardware. Also, Gears of war remastered is using it and of course Ashes of the singularity and any games in the pipeline from Oxide that use the engine.

Read this:http://www.pcper.com/reviews/Editori...ronous-Shaders