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DirectX 12

Hay,, im not sure if this has been covered or not on this thread yet.
Why will DX11 cards not be able to support DX12? Is it not just software?
I was thinking that with the last generation of cards being rebranded as a new card for this one, could the same not be done with this years cards when DX12 comes out. If this is the case could the BIOS not be flashed to bring it up to speed. Kinda like with the hd 7970 bios being flashed to a r9 280?
 
I feel it is time to settle this once and for all. My old dinosaur Titans will take on a pair of 290's/X's at 1440P in Mantle. I expect to get beaten but worth seeing how fantastic Mantle is.

All I keep hearing is dribble dribble dribble and no one is putting anything up, so put up or shut up.
 
Certain shader technology becoming incompatible. This being the first *new* build since 2009, it probably requires new hardware functionality. Tessellation is a good example from previous gens
 
n00b_monkey said:
Hay,, im not sure if this has been covered or not on this thread yet.
Why will DX11 cards not be able to support DX12? Is it not just software?
I was thinking that with the last generation of cards being rebranded as a new card for this one, could the same not be done with this years cards when DX12 comes out. If this is the case could the BIOS not be flashed to bring it up to speed. Kinda like with the hd 7970 bios being flashed to a r9 280?
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Well, I would say it would be up to how M$ implement dx12.

For your question about "Why will DX11 cards not be able to support DX12? Is it not just software?"...dx9 cards couldn't use dx10 or dx11, and dx10 cards couldn't use dx11. It's not a question of why, but more about historically we've been shown it's always been that way...unless it is different this time round. Knowing M$ they will be waving the dx12 flag as hard as they can, just so they can justify forcing gamers to abandon Windows 7 and Windows 8 to jump onto Windows 9 while squeezing money out of their pockets :rolleyes:
 
Gregster said:
I feel it is time to settle this once and for all. My old dinosaur Titans will take on a pair of 290's/X's at 1440P in Mantle. I expect to get beaten but worth seeing how fantastic Mantle is.

All I keep hearing is dribble dribble dribble and no one is putting anything up, so put up or shut up.
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Use a bit of resolution scaling too, 200% if you and anyone else having a go can manage it.
 
That'll be fun with Mantle's gigantic memory leak. I posted my results at 4K with 110% scaling getting 100 FPS in Floodzone, but apparently that's not that impressive.
 
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My take on this is if NVidia do not jump on the mantle bandwagon if and when then mantle will eventually die a slow agonising death, DX12 has only just been announced and already the mantle boys have been rushing to intensive care trying to resuscitate mantle.

To all AMD users... be afraid, be very afraid. :D:D:D:D
 
Well we have Humbug posting his low/medium settings showing how good Mantle is, we have LtMatt posting benches of Mantle Vs DX11 and it is pretty damned boring. I, like others (I hope) would like to keep this thread for DX12 news and leaks. Leave the Mantle crap for all the other Mantle threads please gents :)
 
I remember the big hoo haa about DX10.1 and how good it made Crysis look, but that was easily doable on DX10 and just needed a line or 2 typed in to a config file iirc.

I do hope they release it and release it with something like Crysis or other jaw dropping game.
 
MjFrosty said:
I've been speaking with someone from my age old RTCW clan who works for Microsoft. Apparently it's been in the works for over 3 years :). Keeping it very much on the low then.
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That doesn't surprise me and probably been working on it the same time as the XBONE's API.

The more I think about it, the last thing MS will want to do is cheese off PC Gamers in truth and regardless of the XBONE, they make massive revenue from PC gamers.
 
Samsara said:
i think iv seen about 4-5 games use dx11 properly since 2009

whats the point in DX12 no one will care, again...
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Games don't have to use every single effect in the library to see a use from it.

I.E World of Warcraft can be run in OpenGL or Direct3D 7, 8, 9 and 11. And it doesn't look that much different overall unless your comparing spell/water/lighting effects, hell it's hard to see any visual difference between D3D 9 & 11. Unless of course you have an FPS counter running because as D3D 11 is more efficient than 9 was, you can get up to a 20% FPS increase by running D3D 11 on compatible hardware.
 
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ubersonic said:
Games do have to use every single effect in the library to see a use from it.

I.E World of Warcraft can be run in OpenGL or Direct3D 7, 8, 9 and 11. And it doesn't look that much different overall unless your comparing spell/water/lighting effects, hell it's hard to see any visual difference between D3D 9 & 11. Unless of course you have an FPS counter running because as D3D 11 is more efficient than 9 was, you can get up to a 20% FPS increase by running D3D 11 on compatible hardware.
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Wrong. The threading optimizations of DX11 are backwards compatible with DX10 hardware. The only feature of DX11 which requires hardware is Tessellation.

Gregster said:
I remember the big hoo haa about DX10.1 and how good it made Crysis look, but that was easily doable on DX10 and just needed a line or 2 typed in to a config file iirc.

I do hope they release it and release it with something like Crysis or other jaw dropping game.
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Crysis was DX10, and was "easily doable" on DX9. In reality it wasn't, people are just too blind to see the difference in quality of things like godrays and reflections. Also, no per-object motion blur whatsoever in DX9... but then, I doubt many people spent enough time rolling barrels down hills or blowing up shanty huts to notice.
 
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OLDPHART said:
DX12 no doubt we will have to upgrade to Win 8.1 at least, but like most will wait and see any benefits if any at all.
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I think they will have difficulty making it run on 8.1 but not 8, it would be super easy to reverse engineer as 8.1 is basically a service pack for 8.

It's like when they made a version of DX Windows 7 exclusive so people hacked it to install on Vista, then MS cut their losses and released it for Vista to try and bag some good guy points.
 
LegendaryDread said:
Wrong. The threading optimizations of DX11 are backwards compatible with DX10 hardware. The only feature of DX11 which requires hardware is Tessellation.
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^ Correct

Also rumour has it the SDK will be available March 21st.

Must...not...mention... Mantle.


Also, just a thought - if there is any hardware functionality changes - then there has to be a GPU demonstrating them ;).
 
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Sorry, I thought you were making the same assumption others have previously in this thread. My bad (it does read a bit like it, tbh)

My point was simply that any low-level optimizations which come from DX12 are not necessarily limited to DX12 hardware.
 
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