View Full Version : DX10.1 VS. DX10 -Facts speak louder than the Ubi statement

05-01-2008, 03:19 AM
4xMSAA+DX10 VS. 4xMSAA+DX10.1 Comparison on Radeon HD 3870 512MB GDDR4 video card using ATI 3DMark Vantage hotfix driver.


You can see there's no HDR lighting, no lighting reflection on the floor, no AA on the edge of bird cage at the right bookshelves. Also you can see the DX10.1 performance lead 12.12%.

05-01-2008, 03:26 AM
more Comparison pics:

4xMSAA+DX10.1 on 3870(cat 8.4) VS. 4xMSAA+DX10 on 9600GT:


4xMSAA+DX10.1 on 3870(cat 8.4) VS. 4xMSAA+DX10 on 9800GX2:


you can get same result as the 4xMSAA+DX10 VS. 4xMSAA+DX10.1 Comparison on Radeon HD 3870 512MB GDDR4 video card

05-01-2008, 03:30 AM
some data from Hardocp:

A few days ago, we received this statement from Andy Swanson of Ubisoft via NVIDIA:

Ubisoft plans to release a patch for the PC version of Assassin's Creed that addresses the majority of issues reported by fans. In addition to addressing reported glitches, the patch will remove support for DX10.1. The performance gains seen by players who are currently playing Assassin's Creed with a DX10.1 graphics card are in large part due to the fact that our implementation removes a render pass during post-effect which is costly.

That leads us to believe that DirectX 10.1 support is being permanently removed from Assassin's Creed. But then, the Ubisoft UK site says this:

In addition to addressing reported glitches, the patch will remove support for DX10.1 in order to rework its implementation.

We don't have an exact date for the release of this patch but we're hard at work and hope to have further updates soon.


05-01-2008, 03:33 AM
Kyle's note: We think we have done our homework here and don't see any reason for DX10.1 support to be taken away from Radeon 3800 series owners. This is the first time we have seen the ATI Radeon 3870 benefit from the heavily marketed DX10.1 support. To simply take that away is a travesty and we think that Ubisoft should at least leave the choice up to the end user. Obviously you don't have to patch the game, so Ubisoft can't really take it away from you, but don't expect continued support for the DX10.1 version of the game, at least not for the time being. And that time being is very likely till NVIDIA gets its own DX10.1 GPU considering it has a reported US$4,000,000.00in deals invested with Ubisoft at the moment. Time will tell.


05-01-2008, 04:31 PM
I have an NVidia setup so people may look at this post as being biased. It could well be right that Nvidia is being a bully and wants the devs of the game to get rid of the 10.1 codepath.

But it makes no sense since it does not affect Nvidia hardware owners at all. The ATi cards performance is just too far back.

Also there is no clear conclusion that can be drawn. One camp says that the 10.1 implementation needs to be removed right now because they omitted a pass and that could be read 2 ways. 1 way Nvidia is strongarming and so it is an excuse and so they are sayign that it is a bad thing. The other thing is that it was a mistake and they are looking to remove that via a patch and then they are going to bring it back in with a proper patch. Who knows?!

But the point is that I am playing @ 2560 x 1600 with 4 x MSAA and 16 x AF and getting 40-50 fps all over the game and it looks awesome.