travismontana :
What about that download that the Alky team did to put on dx10 for windows xp? I tried it and got a better score on pc wizard and on a bench test then I did with dx9c
It does not truly install DX10 in Windows XP. It may activate some DX10 features and tell you that you have DX10, but it is not really DX10. It would be easier to show you the difference but there aren't that many applications or games that fully utilize DX10 yet. There are some games that use a little bit of DX10 to show some enhanced special FX but they are not truly built in DX10. (A game that comes out designed from the bottom in DX10 will not be playable in XP because it won't be DX9 compliant. All of the DX10 games released so far have a DX9 version because they are 99% DX9 and 1% DX10.) It's not a big deal right now because Vista is not the best platform for DX10.
Windows 7 is supposed to be released with DX11 and then, if Win7 is what it is supposed to be, there will be a reason for game developers to create DX10/DX11 games. (DX11 will be compatible with DX10 hardware and code, though you'll need DX11 hardware to take advantage of all of its new features.) DX10 is supposed to be more optimized and run faster than DX9 (as well as add new features of course) but because of Vista's issues with speed (before SP1) and its low adoption rate there is no incentive for game developers to release a game that can't be played on XP/DX9; they would be cutting their number of potential customers in half. It will take a year or so after Win7's release for game developers to know if Win7 is a hit with the gaming market. XP will be phased out regardless but if Win7 is adopted by gamers quickly then more games made in DX10/DX11 will be released more quickly.
Some day some crazy hackers may find a way to install true DX10 on XP but by then DX11 could be out and then they'd have to do it all over again.
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