Product: Assassin's Creed
Company: Ubisoft
Authour: Alex 'Morgoth Bauglir' Voicu
Editor: Charles 'Lupine' Oliver
Date: April 29th, 2008
Assassin's Creed DX10.1 - Addendum

Soon after Rage3D's initial Assassin's Creed DX10.1 investigation, Ubisoft announced the removal of DX10.1 support from the game via an upcoming patch. With little detail into the reasons of removal, the official statement on the cryptic side, questions regarding the differences in Image Quality (IQ) between the DX10 and DX10.1 pathways prompted us to investigate further. This took a bit more time than originally planned due to two reasons:

  • Acquiring an HD3870 card to get an idea of the benefits can single card users expect, and to quell the unfounded fear that actually we were seeing SP1 benefits for multi-GPU configurations, instead of actual improvements from DX10.1 code. While we're still waiting for the HD3870 to arrive, the good chaps at PCGamesHardware.de can give you an idea of what to expect. We will, of course, follow up with our own testing and comments when the MIA HD3870 arrives.
  • Upon superficial examination, no IQ differences and apparent, and even we were tempted to place an equal sign between the two pathways. However, with further more detailed testing, some discrepancies were uncovered. Whether these discrepancies improve or diminish quality is subjective: it'll be up to you to judge. Our role is simply to provide you with the data required for analysis, pointing out the specifics that caught our attention.

Test Setup Notes

The screenshots on the following pages are outputted by the same 3870X2s used in the initial Assassin's Creed article. We have moved to the 8.490 Catalysts, build date 09.04.2008, simply due to the reason that these allow enabling AF in-game as opposed to forcing it through the CCC. Otherwise, there are no notable differences compared to the 8.471.1 Hotfix drivers used during our prior testing.

Due to the nature of this investigation, we felt it important to offer our readers screenshots of a much higher resolution than the norm, allowing them the ability to see the minute detail necessary to make sound judgments as to the costs and/or benefits of DX10.1.

With that out of the way, lets get on to the interesting stuff.


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