DirectX 12 will reportedly 'treat multiple GPUs as a single entity'

[Rafy]

We've written about Brad Wardell, the CEO of Stardock and his impressions of DX12, but he has said that using an "unreleased GPU" he was able to see a huge 100FPS difference between cards. He tweeted that he "did a test of DirectX 11 vs. DirectX 12 on an unreleased GPU with an 8core CPU. DX11: 13fps, DX12: 120fps. Lighting and lens effects".

 

When pressed, Wardell said he was using a Crossfire system, with an Intel Core i7 CPU. Since he's using an "unreleased GPU" we can gather he might be using the new Radeon R9 390X, which is another nice nugget of information, it means that they're out in the wild. Better yet, Wardell said that "one thing it does make it easy to treat multiple GPUs as a single identity"

 

Only a few days left Until GDC, then we'll know for sure.

 

Source: http://www.tweaktown.com/news/43628/directx-12-reportedly-treat-multiple-gpus-single-entity/index.html

[Enderman]

This sounds like the "combined vram" thingy we heard about not long ago

[idieorudie]

Only a few days left Until GDC, then we'll know for sure.

Source: http://www.tweaktown.com/news/43628/directx-12-reportedly-treat-multiple-gpus-single-entity/index.html

If this turns out to be true and if there will be no need for sli or xfire optimisation then future is looking good in 4k ultra 16x msaa [overkill]

[Guest]

My unreleased pc with some 8 core cpu is pushing 100000fps

 

We have some numbers with unknown components. I dont like that.

[Sauron]

I'd like to know what test he used. Because I'm almost sure it was specifically made to have the best possible scenario for dx12 and the worst possible scenario for dx11.

[idieorudie]

I'd like to know what test he used. Because I'm almost sure it was specifically made to have the best possible scenario for dx12 and the worst possible scenario for dx11.

Yep could be true

[flibberdipper]

If I can use my 7950 and 480 together, that would honestly be fucking awesome. But I don't think it will happen, so...

[Kyuubixchidori]

even so, Im extremely excited for multiple gpus being treated as single cards. My 79xx crossfire set up is full of issues, and really, lack of game support. it can push more frames then what the 3gb vram likes. so being able to get 6 gb of vram would be epic

[Altecice]

How is it possible to get only 13FPS DX11 yet on DX12 you get 100FPS more? What kind of benchmark was that?

[Master Disaster]

Please change the title from "WILL to "CAN"

Sure its possible as it is with mantle too but it must be programmed into the game, its not something which will happen automagically.

[Faa]

How is it possible to get only 13FPS DX11 yet on DX12 you get 100FPS more? What kind of benchmark was that?

It's just AMD's DX11 is broken, performs horrible compared to Nvidia's

[ukkayaker42]

How is it possible to get only 13FPS DX11 yet on DX12 you get 100FPS more? What kind of benchmark was that?

 

 

It's just AMD's DX11 is broken, performs horrible compared to Nvidia's

 

I think it has to do with draw calls, the only advantage which has been shown for DX12 is its higher draw call rate, so if you create a scenario where the number of calls would higher then the DX11 limit, you would see a big FPS increase. 

[geforceftw]

This means absolutly nothing right now. For all we know they could be talking about an APU.

[RexinOridle]

Altecice, on 19 Feb 2015 - 3:31 PM, said:

How is it possible to get only 13FPS DX11 yet on DX12 you get 100FPS more? What kind of benchmark was that?

 

One was actually marking on a bench with a marker, and the other was on a PC I guess.

[Rafy]

Please change the title from "WILL to "CAN"

Sure its possible as it is with mantle too but it must be programmed into the game, its not something which will happen automagically.

"reportedly" is the key word and takes care of the issue you brought up

[asim1999]

Then SLI 970s with their 3.5GB VRAM issue will still be a viable option for 4K

[marldorthegreat]

 

Only a few days left Until GDC, then we'll know for sure.

 

Source: http://www.tweaktown.com/news/43628/directx-12-reportedly-treat-multiple-gpus-single-entity/index.html

 

Unreleased gpus...... HMMMMMM.... r9 390x,,,,,, HMMMMMMMM,,,,,,,HMMMMMMMM........HMMMMMMMMMMM....

[mvitkun]

This means absolutly nothing right now. For all we know they could be talking about an APU.

a Core i7 APU?

Really?

You think that the intel HD graphics got 13fps in DX11 and 120fps in DX12.......

 

I highly doubt it.

 

Yes everyone should take this with a grain of salt, however based on what he said I'm fairly sure we can at least assume he's using some sort of discrete graphics.

Because if intel HD graphics got that much of a performance boost then fuck discrete graphics.

[bcredeur97]

Does this mean 5 way SLI/crossfire that was rumored a while back will actually be not only possible, BUT USABLE?

[samcool55]

If I can use my 7950 and 480 together, that would honestly be fucking awesome. But I don't think it will happen, so...

psst, you can, sort of, you can use that 480 for physx. Not that it's very useful, but you can if you want.

[flibberdipper]

psst, you can, sort of, you can use that 480 for physx. Not that it's very useful, but you can if you want.

Not if you have fairly recent drivers. And PhysX is kinda pointless, IMO.

[samcool55]

Not if you have fairly recent drivers. And PhysX is kinda pointless, IMO.

For the AMD card it doesn't matter afaik, and for the 480 just take the old drivers, newer ones cause BSOD, physx is indeed pointless so what does it even matter if the drivers are up to date.

But just sayin' if you want, you can

[Altecice]

It's just AMD's DX11 is broken, performs horrible compared to Nvidia's

 

Im sorry thats just complete bs.

[azurezeed]

Repost?

 

http://linustechtips.com/main/topic/313145-test-shows-over-100fps-difference-between-dx12-and-dx11/

[Stomplar]

and im calling it all bullshit. tests mean nothing. give the card to me and i am 100% it wont be like what he describes. its all marketing bs like it always is.