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Apple Computing Products:
Running Windows on your Mac
Problem Running Windows Games on Parallels
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<blockquote data-quote="Zoolook" data-source="post: 630387" data-attributes="member: 21101"><p>Essentially it means the GPU (Graphics Processing Unit) has to do a lot of work, because DirectX9 assumes quite a lot of things about your hardware, one of them being that you have a DX9 compatible GPU that can do things like pixel shading, vertex shading and have hardware TnL.</p><p></p><p>Now there are 2 things that will kill performance in the case of the original poster. One is that they are using a MacBook, which comes with the 'mighty' GMA950 (or maybe the X3100). The former does not even have hardware TnL (that's transform and lighting) meaning all the geometry set up calculations have to be done on the CPU. In PC the gaming world, this has not been the case since about 2001. God only knows why Intel decided to release a GPU without any TnL capabilities.</p><p></p><p>Even if they have the X3100, which DOES have hardware TnL (give Intel a pat on the back), the 2nd issue is running Vista on Parallels. Parallels does not have great DX9 support anyway, and many of the instructions are emulated via the VM. The pixel shaders for example. Essentially, the software is trying to simulate what the DX9 hardware would be expected to do, resulting in performance that is literally thousands of times slower than it should be.</p><p></p><p>Now you could blame Microsoft for requiring such insane hardware for a built in card game, or you could blame Apple for fitting the MacBook with such ancient tech, or you could blame parallels for not having advanced driver support in their VM core technology. Some especially harsh people would blame the user for trying to run Vista on Parallels, when all wisdom suggests this is a bad idea (what's wrong with XP?).</p><p></p><p>The answer is: Bootcamp + Better hardware.</p></blockquote><p></p>
[QUOTE="Zoolook, post: 630387, member: 21101"] Essentially it means the GPU (Graphics Processing Unit) has to do a lot of work, because DirectX9 assumes quite a lot of things about your hardware, one of them being that you have a DX9 compatible GPU that can do things like pixel shading, vertex shading and have hardware TnL. Now there are 2 things that will kill performance in the case of the original poster. One is that they are using a MacBook, which comes with the 'mighty' GMA950 (or maybe the X3100). The former does not even have hardware TnL (that's transform and lighting) meaning all the geometry set up calculations have to be done on the CPU. In PC the gaming world, this has not been the case since about 2001. God only knows why Intel decided to release a GPU without any TnL capabilities. Even if they have the X3100, which DOES have hardware TnL (give Intel a pat on the back), the 2nd issue is running Vista on Parallels. Parallels does not have great DX9 support anyway, and many of the instructions are emulated via the VM. The pixel shaders for example. Essentially, the software is trying to simulate what the DX9 hardware would be expected to do, resulting in performance that is literally thousands of times slower than it should be. Now you could blame Microsoft for requiring such insane hardware for a built in card game, or you could blame Apple for fitting the MacBook with such ancient tech, or you could blame parallels for not having advanced driver support in their VM core technology. Some especially harsh people would blame the user for trying to run Vista on Parallels, when all wisdom suggests this is a bad idea (what's wrong with XP?). The answer is: Bootcamp + Better hardware. [/QUOTE]
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Apple Computing Products:
Running Windows on your Mac
Problem Running Windows Games on Parallels
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