64bit doesnt work on bootcamp, it may wen leopard comes out, a compliant video card is available for download for free, windows xp comes with like directx 7, so u need to upgrade to 9 (the latest for xp), vista comes already with directx 10 built in, it makes things look more realistic, its like ur digital video card, so to get the best realism out of fsx, u need a power ful video card: nvidia geforce 7800 GTX, 9800 XT, or sumthing like that, for ati radeon (built for gaming, nvidia is recommended by most CAD programs), 2600 hd PRO, or anything in that neighborhood, i really dont know exactly, directx works with all video cards, the video card im talking about is the ATI Radeon HD 2600 PRO with 256MB memory video card, it would work on ur video card, sorry for the lack of order
Sorry, what?
64-bit works just fine on Boot Camp, if you have a 64-bit Mac (Mac Pro, or any model with Core 2 Duo.) The whole point of Boot Camp is that it is not dependent on the host OS (The Mac OS) for anything, so Leopard doesn't matter. I know more than one person successfully running Windows XP Professional x64 Edition on their Mac Pros.
Apple doesn't provide 64-bit drivers, but for almost all of the hardware in Apple's computers, you can get drivers from the actual hardware manufacturer (video card, etc.) Only the Apple-specific bits won't work. (iSight, IR sensor, etc.)
"a compliant video card is available for download for free"? What? A video
card is the physical piece of hardware. In the Mac Pro, it can be physically removed and replaced, in every other Mac, it is a permanent part of the main board. (It is on a daughtercard in at least the previous-generation 24" iMac, but I don't think anyone ever found a source for replacement cards.)
The original release of Windows XP came with DirectX 8.1. If you have Service Pack 2, and that's it, then you have DirectX 9.0c, the latest version. (There have been patches and bugfixes, but 9.0c was the last 'feature release' of DirectX 9.) And, yes, you need Vista for DirectX 10. (And Vista comes with it.
However, the software is one thing. The hardware is another, and the drivers are a third.
Just because you have the DirectX 10
software doesn't mean you'll get the better graphics. The second step is the hardware. Usually, hardware is referred to by what "class" of hardware it is. This refers to the sub-specifications of DirectX, the "Pixel Shader" and "Vertex Shader" versions that the hardware fully supports. Generally, hardware that is called "DirectX 10 class" means that it supports
all of the features that were added in DirectX 10, Shader Model 4. However, even older hardware can run "DirectX 10" software just fine, you just won't have all the "eye candy", and/or it won't run as fast. (Some of the new features in new versions of DirectX make it so that it takes less code or effort to to achieve a certain effect; while others add new capabilities, like better transparency.)
The third 'crutch' is the drivers. Just yesterday, I ran into an issue where a customer of mine had an old Dell laptop with a Mobile Radeon 7500 video chip. This chip is technically a "DirectX 7-class" chip, meaning it isn't capable of the features that were added in DirectX 8, 9, or 10. But ATI offers DirectX 9 compatible
drivers for the Radeon 7500, so that the game can run DirectX 9 games. You just won't have all the visual special effects. and the game would be slow.
However, for mobile chips, ATI forces you to go through the laptop manufacturer for drivers, and Dell didn't have DirectX 9-compatible drivers. That means that even though DirectX 9 games work just fine on a desktop Radeon 7500, they won't work on this Dell laptop, because Dell never provided the newer drivers.
Finally, the
game must support the DirectX features. For example, Flight Sim X does not yet support DirectX 10. It only runs through DirectX 9, even in Vista. The link in my previous post showing DirectX 9 to 10 comparisons shows a game (Call of Juarez) that does support DirectX 10 fully. That means that to run Call of Juarez in its full glory, you need a DirectX 10-class video card (nVidia 8x00 series, or Radeon HD 2x00 series,) Windows Vista (for the DirectX 10 software,) DirectX 10 compatible video drivers, and, of course, Call of Juarez. By comparison, even if you had all the other pieces, Flight Sim X will look exactly the same in Windows Vista as it would in Windows XP on DirectX 9 hardware. In fact, it would be
faster on fast DX9 hardware (GeForce 7950GX2, for example,) than it would be on slow DX10 hardware (ATI Radeon HD 2300,) while looking exactly the same.