DX12 CPU Performance Leaked, Way Faster Than DX11 – Threading Model Resembles AMD’s Mantle

[layte]

It actually the other way round, it far easier to add in the vendor necessary code path, it can be done with a much smaller team in much less time.

DX doesn't have vendor specific code-paths. So how does that work again? Mantle is so specific to GCN versions, that even variations cause performance issues.

 

[humbug]

I didn't say that. It needs to understand each GPU, DX simply runs a higher level emulation ^^^^

yeh dx12 has to support a ton of different hardware, if mantle helped or not it still has to be a tough job

hope it makes it into windows10 release, im liking the tech preview so far!

Windows 8.1 would be nice, not everyone will be upgrading to windows 10.

 

[thefogo]

Ty based AMD

 

[layte]

It needs to understand each GPU, DX simply runs a higher level emulation ^^^^

It talks to each device via a standard interface that any vendor can create a driver for. DX right now doesn't care about or even understand the hardware.

 

[humbug]

It talks to each device via a standard interface that any vendor can create a driver for. DX right now doesn't care about or even understand the hardware.

Again that is not what i said.

 

[layte]

And to all the people smugly shouting down the "dx12 = mantle" people, guess what... you can't prove it either. In fact there is more evidence for DX12 being a panic reaction to Mantle than not.

I'd say it's even more likely that Microsoft have rewritten the necessary parts of DX to be more efficient. That makes more sense than tossing the whole lot out and performing a hatchet jobs on another vendors platform specific API.

 

[layte]

Again that is not what i said.

Yea, it was. I'm not going to play your silly game of semantics you like to play when found out.

 

[humbug]

Yea, it was. I'm not going to play your silly game of semantics you like to play when found out.

Your the one playing silly games.

Steering what i say to suit you does not work with me.

 

[r7slayer]

Gotta love AMD, EA/Dice invent Mantle with thanks to MS for DX. Huddy then takes someone elses invention to MS like they were the ones that brought it to the table, do they have no shame ?

Where did you get that from? Can i see where you got this info from because when i read up on it i saw that AMD took the idea to EA/Dice and asked for their input and worked along Dice/EA to develop Mantle. AMD did all the leg work, so as far as i see it AMD was the ones who invented it. Being such a nvida fan boi and hating on AMD constantly with their innovations do you have no shame?

 

[andybird123]

You really don't get it, Mantle effectively bundles up commands and passes them to the driver, Nvidia and Intel are free to make Mantle drivers, it IS compatible with both companies should they make drivers. The compatibility with an API comes driver side, not with the API. It's entirely in Nvidia/Intel's hands if they choose to offer compatibility with it, not AMD's.

Yeah totally, that must be why both nvidia and AMD had drivers for Glide and we don't need emulators or wrappers to make glide games work anymore... Oh no, wait

 

[Locky]

I'm not saying it's Mantle





but it's Mantle


This needs a meme

 

[elmuzzy66.]

I'm not saying it's Mantle





but it's Mantle


This needs a meme

Aliens!!

 

[almighty15]

dx12 is .

Does that mean OpenGL is DirectX?

 

[Uncle Petey]

Oh lawd. I swear you guys live for this kind of thread.

 

[Rusty0611]

Assumption that will probably never be clarified so he isn't right or wrong.

However haven't heard a single MS employee saying that it hasn't lifted Mantle techniques though and said AMD were talking ****.

Lack of denial doesn't equal acceptance of truth. If you're a large corporation you have no need to respond to all rumours.

Of course it will be similar - they are both essentially means to the same end - but the same? No way. AMD can barely get Mantle working at 100% from day 1 on the small subset of GPUs they support and DX has to cater for all GPU types. That point alone highlights what will be a key difference between the two.

But the more pertinent point for me is: does it really matter? Not to my mind apart from laughing at the tedious fanboys arguing that Mantle was first and therefore anything similar is Mantle.

 

[Rroff]

Would MS commit millions and an army of coders to create something that does the same thing as something that already exists and can use?

Or would they simply make what already exists work on all their intended vendors?

Reinvent bread?

Given how convoluted DX has become and the backward compatibility required they aren't realistically going to take Mantle, slap DX12 on it and ship it. Its likely that they've worked from the Mantle source to speed up development if its available to them to use like that though. They are going to have to commit millions and an army of coders any how.

Also not really surprising its similar whether based off Mantle or not as there are only so many ways you can implement a threading model in a graphics API.

 

[Tonester0011]

Humbug knows everything to do with AMD, don't question his knowledge....
Same as DM, Shank and that jock.

 

[D.P.]

Enjoy like couple us on here have said from day one, dx12 is Mantle.. It's everything amd showed Microsoft..

According to Richard Huddy, AMD’s Gaming Scientist, the company has taken Mantle to both Microsoft and the Khronos group to help them realize and work in any of Mantle’s benefits that they may wish to implement in their own next generation APIs. So it doesn’t come as a surprise to see DX12 take on a Mantle-like form.

http://wccftech.com/dx12-revealed-c...utm_campaign=Feed:+Wccftechcom+(WCCFtech.com)

What we all learn here though is next year pc gaming is looking sweet.

RIP Mantle.

 

[r7slayer]

RIP Mantle.

how is it resting in peace? It will live on no matter what. Mantle is a hero!

 

[D.P.]

If DX12 is Mantle, then Microsoft must have some awesome skillz making it Nvidia compatible.

I'm kidding of course, it's not Mantle and we all know it, except those who pretend that AMD created the world.

This really, at best Mantle can be credited with making MS release DX12 in te same lines as Mantle. Perhaps AMD even shared design ideas with MS. But Dx12 is very different to mantle, it works on Nvidia GPUs, and older AMD GPUs - something AMD failed to even do.
But that really makes no sense whatsoever, why would AMD purposely support its competitors?

If AMD really gave significant input to MS then they basically bug their own grave for mantle.

Seems more plausible that MS wanted a faster API for XBox and didn't mind helping windows DX performance in the process. AMD may have been under contractual agreements to support driver development for Xbox - this may have given MS legal rights to use any Mantle ideas in DX12.