Caporegime
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Dx10.1 Vs Dx10 - performance video
- Thread starter LoadsaMoney
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DX10.1 is mostly minor opptimisations that generally give no performance increase on nVidia hardware and 10-30% performance increase on ATI R600 series hardware, tho not so much on the newer one iirc...
Its mostly about being able to do more stuff in one pass, without having to go back and refetch data, etc. Theres also some minor precision increases.
Interestingly they only use 2x AA in that video... I think the results would be quite different with 4 or 8x.
Its mostly about being able to do more stuff in one pass, without having to go back and refetch data, etc. Theres also some minor precision increases.
Interestingly they only use 2x AA in that video... I think the results would be quite different with 4 or 8x.
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)Far Cry 2 also uses it if I'm not mistaken.
Also, that makes an interesting point, Nvidia does have support for many of the features in DirectX 10.1, but rather than choosing to support them through the DirectX API, they only do so via their own NVAPI - just to be awkward I guess.
Soldato
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whens dx11 coming?
http://www.youtube.com/watch?v=obwKl1Fi1yQ&fmt=22
Probably a better DX10.1 explanation video. If you watch the HD version you can see some 0xAA vs 8xAA marketing graphs in the background.
Probably a better DX10.1 explanation video. If you watch the HD version you can see some 0xAA vs 8xAA marketing graphs in the background.
Also Assassins Creed on 1.1 patch and Stalker Clear Sky 1.506 patch I believe. Oh and also so does HAWX
Associate
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thats because nvidia doesnt even support dx10.1.
its simply a better version of dx10, or as its said to be 'what dx10 should have been' - only nvidia couldnt meet the spec so it had to be simplified.
Sure its a better version of DX10 I don't dispute that... but in general nvidia hardware was shown to run the old less efficent implementation as fast or faster than ATI could run the updated versions... although some of the SSAO functionality brings some interesting features to the table. But by the time developers start really using it and we have the hardware to back that up performance wise DX10.1 will be a thing of the past.
It definitely gives ATI cards the boost they need to keep up, it's just a shame for them that so few games support it.
Like NVidia they would have been better just designing a more efficient DX10.0 card, although it would have been more expensive and AMD seem to be all about value at the moment.
Like NVidia they would have been better just designing a more efficient DX10.0 card, although it would have been more expensive and AMD seem to be all about value at the moment.
Soldato
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"they need to keep up"
What?!?!
I mean 4870 was rival to GTX280 and ended up on par with GTX260, DX10.1 brings it closer to GTX280 performance but so few games use it anyway so in most cases it's a waste.
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To be fair there are after market coolers that sort this out... I think they ramped up the speed a bit too because there was a large number of cards off the initial batch(s) where the VRMs burnt out very quickly (which is probably why the cooler got redesigned early on).
If 4870x2 was to rival GTX280 then what of ATI's was to rival GTX280 SLI? you cannot compare Crossfire/SLi to single GPU cards they're not even in the same league.
The 4850 was supposed to rival GTX260.