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DirectX confusion

post #1 of 9
Thread Starter 
Nowaday all game launcher comes with 2 options DX9 & DX10.
what is the difference between them.Probably DX10 should be more efficient than DX9 but when i play benchmark in most games DX9 gives more FPS like about 10 more than DX10.If DX9 gives more FPS than why is DX10 for.
Which one should I use.My card can support both.
Thanks in advance
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post #2 of 9
DX10-11 have some more advanced features than DX9, therefore they will be harder on your GPU.

Use 10 if you can and your FPS is good. Only go back to 9 if you have to.

DX is just an API the newer versions can do more advanced things for eyecandy but it will cost you performance!
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post #3 of 9
Depends on the game and if you can see the differences. DX10 should look much better. and if its still smooth with DX10 use that. Basically it matter if you want it stutter free or look the best it can. But if it doesn't stutter at with DX10 then use it.
 
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post #4 of 9
Thread Starter 
Thanks,I will try DX10
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post #5 of 9
Quote:
Originally Posted by Hawk777th View Post
DX10-11 have some more advanced features than DX9, therefore they will be harder on your GPU.

Use 10 if you can and your FPS is good. Only go back to 9 if you have to.

DX is just an API the newer versions can do more advanced things for eyecandy but it will cost you performance!
This.

If you play Alien vs Predator 2010, the tessellation is very noticeable.
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post #6 of 9
DX9 - The (relatively) basic version, (relatively) basic graphics and ofcourse high frame rates.
DX10 - More advanced version, more rendering and graphic processing features for developers, obviously lower rates.
DX11 - the latest version yet, your HD4650 will not support it =/
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post #7 of 9
In some cases, spotting differences between DX9 and DX11 is very difficult. For example, when Dirt 2 came out, the differences were minimal. You do notice the hit in performance tho .
 
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post #8 of 9
Quote:
Originally Posted by Wishmaker View Post
In some cases, spotting differences between DX9 and DX11 is very difficult. For example, when Dirt 2 came out, the differences were minimal. You do notice the hit in performance tho .
The next generation of games like Battlefield 3 will make much more use of DX11 though .
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post #9 of 9
There is not too much noticeable difference (visually i.e.) between DX9 and DX10. As other users have noted, DX10 has a bigger performance impact (and also better lighting though I've seen some amazing lighting with DX9). If you are an eye-candy addict and have the processing power, I say play DX10. Else, DX9 will be a better option.
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