Subj : Re: DirectX 9.0c software versus Video HARDWARE DIRECTX 9 or 10+? To : All From : nospam@needed.com Date : Sun Jan 06 2019 05:17 am Path: eternal-september.org!mx04.eternal-september.org!mx04.eternal-september.org!.PO STED!not-for-mail From: Paul Newsgroups: alt.windows-xp,alt.os.windows-xp,microsoft.public.windowsxp.setup_deployment,mi crosoft.public.windowsxp.help_and_support,microsoft.public.windowsxp.general Subject: Re: DirectX 9.0c software versus Video HARDWARE DIRECTX 9 or 10+? Date: Sun, 06 Jan 2013 05:17:23 -0500 Organization: A noiseless patient Spider Lines: 71 Message-ID: References: <5a5d2214-342b-4c2c-a655-ea2e21bbb34c@qi8g2000pbb.googlegroups.com> <9a872716-2622-4b52-9850-43a14c00b4ab@s14g2000yqg.googlegroups.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Injection-Date: Sun, 6 Jan 2013 10:17:21 +0000 (UTC) Injection-Info: mx04.eternal-september.org; posting-host="6feb1f416e69bebb8386f4f952c275a8"; logging-data="29671"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX18VhfU3FF8L7td270u5SBbPk/MKXip9RPc=" User-Agent: Thunderbird 2.0.0.24 (Windows/20100228) In-Reply-To: <9a872716-2622-4b52-9850-43a14c00b4ab@s14g2000yqg.googlegroups.com> Cancel-Lock: sha1:6YnTCoxHRodDLbHh68FeiQtmWnM= Xref: mx04.eternal-september.org alt.windows-xp:4039 alt.os.windows-xp:5448 microsoft.public.windowsxp.setup_deployment:2483 microsoft.public.windowsxp.help_and_support:30931 microsoft.public.windowsxp.general:106364 Greegor wrote: > http://www.amd.com/US/PRODUCTS/NOTEBOOK/GRAPHICS/ATI-MOBILITY-HD-5400/Pages/hd- 5450-specs.aspx > > This DIRECTX 11 card has DRIVERS for WinXP and W7. > > If the DIRECTX 11 hardware and firmware can't > be used in WinXP then what does the driver > do with it? > > Would a game application actually prefer > DIRECTX 9 hardware/firmware to the > DirectX 9.0c software module? > > I see a card that has shaders and stuff for DIRECTX9. > Would the DirectX 9.0c software module USE that stuff? > > http://www.amd.com/us/products/desktop/graphics/other/Pages/x1300-specification s.aspx > > I found when studying upgrade options that > back when the upper CPU chips were $500 > or $600 each, upgrading seemed less worthwhile > but now those same chips are $10 to $30 > like the high end ones with hw Virtualization. > > When a CPU that used to go for $600 sells > for $30, upgrading isn't so far fetched. "Certified drivers for Windows 7, Windows Vista, and Windows XP" Presumably, not the same driver. The driver would work with things usable by the target OS. If it didn't support DirectX 9, there'd be no point listing a Windows XP driver. Using another card as an example... http://www.amd.com/us/press-releases/Pages/amd-press-release-2009sep22.aspx "superior performance in the latest DirectX 11 games, as well as in DirectX 9, DirectX 10, DirectX 10.1 and OpenGL titles" I don't know if I can come up with a search term specific enough to find a table with that information in it. WinXP uses an XDDM driver, while the later OSes have some flavor of WDDM driver. Notice they do mention backward compatibility so that WDDM can support older titles. http://en.wikipedia.org/wiki/WDDM "The WDDM specification requires at least Direct3D 9-capable video card and the display driver must implement the device driver interfaces for the Direct3D 9Ex runtime in order to run legacy Direct3D applications; it may optionally implement runtime interfaces for Direct3D 10/10.1 and higher." But the driver for WinXP would be XDDM. It means it is quite possible the hardware has to support more than one variation in its interface. It also means, you could run into a video device, that no longer has support for XDDM. While WDDM has some backward compatibility defined for it, there's nothing to say ATI/NVidia have to support XDDM forever on new designs. They could drop it at any time, simultaneous with stopping WinXP driver support. (Ref here) http://download.microsoft.com/download/7/E/7/7E7662CF-CBEA-470B-A97E-CE7CE0D98D C2/GraphicsGuideWin7.docx Paul --- Platinum Xpress/Win/WINServer v3.1 * Origin: Prison Board BBS Mesquite Tx //telnet.RDFIG.NET www. (1:124/5013) .