DirextX 12 - no stream, updates

[Zappykins]

ICStats said:

Zappykins said:

Fusioncode said:

Zappykins said:

ICStats said:

VitroBahllee said:
I'm watching a liveblog of it now. This is going to really boost the Xbox One.

How will it do that?

They say DX12 is a console like API.  XB1 is already a console.  If it has a boost it would only be because their current SDK is bad.

Nah, it's not like that.  Think of it as like a super optimizing driver.  Only it will give you one platform that does what Steam wants their new OS to do, but with the years of experiences that developers have working on DirectX. It's like a new OS.

Xbox One should get at least a 20% GPU improvement according to what we saw today.  Perhaps significantly greater.

Unreal Engine 4 will get upgraded to work with DirectX 12.

It will be the new standard for is flexibility, scalability and power.  PC and Xbox One games will both benefit.

 

Can you please explain this? I'm curious as to why you think that will happen. 

Well, assuming Xbox One will  at least some of the benifit of a 50% optimization, but probably already is ahead of PC's there.   But even if it doesn't, they stated a 20% reduction in GPU render time per frame, or something to that effect.

Mantle is supposed to give a 20% improvement at well.  It's a bit like mantle.

So I went with a conservative estimate of 20%.  The baseline of the GPU.  However, the scaling across the 8 core CPU might result in greater improvements.

I can't read anything on the slide you attached about a GPU side improvement.

What Mantle does it it improves framerates when you have a powerful GPU and weak CPU, because the CPU becomes the bottleneck.  I've never heard of any actual GPU side speed up per-se.

Also XB1 already has some features for multithreaded rendering, and pre-baking command lists so it already has a lot - if not all - of the gain DX12 will give.

It's also hard to say if CPU is the bottleneck in the XB1, since PS4 has basically the same CPU.

Well, a couple things, Microsoft has said the CPU was the bottle neck for consoles.  Might be spin but that's what they said.  I think they do believe that.  It has some different co processors and stuff that the PS4.  They are really good at squeezing power out of phones, writing popular operating system, business software, and games.  So they designed the Xbox One to do what they wanted it to do within a price.

And in the talk they said 20% GPU improvement on same hardware (or to that effect) - things would render and have 20% of the time left over – during the talk.  Wish I had the slides that were clear.   I get the other parts, like CPU enhancement not apply, but why would you think the GPU improvement would not apply to the Xbox One?