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what is msaa in/game graphics settings

post #1 of 4
Thread Starter 
Ok I have a couple of questions here iam hoping you guys could answer for me,what does msaa do exactly? I play a game called splinter cell conviction the game has the following settings....hdr rendering, msaa x8,msaa x4,msaa x2, texture filtering up to x16! I usually try to play all my games with all of the settings maxed out i would like to know how msaa has an impact on a game beacuse even when i turn it off i dont notice any difftence in picture quality whatsoever! I have 2 radeon 6970s in crossfire 2 gb cards & game at 3840x1080 resolution.,thank you
     
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post #2 of 4
Basically, it just smooths jagged edges by using some very complex geometry. This does tax your GPU quite a bit though, if you have a lower end graphics card. Because you have pretty good GPUs, you shouldn't notice any performance difference
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post #3 of 4
Thread Starter 
I was reading an article just now so theres basicly different types of AA and it seems like Nvidia is better at MSAA or am I just imagining things? I haven't noticed any diffence in-game on certin games.
     
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coolermaster 430 elite logitech mk 260 logitech mk 260 sony reciver hooked up to asus optical port 
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amd fx 6100 asus m5a97 msi radeon 6970 Msi radeon 6970  
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coolermaster 430 elite logitech mk 260 logitech mk 260 sony reciver hooked up to asus optical port 
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post #4 of 4
MSAA analyzes the pixels of each frame and does a smoothing/blending process to smooth out rough edges of geometry. This technology does not work on 2D sprites, which requires another form of anti-aliasing called transparency super-sample AA. The 2x, 4x and 8x values indicate how many levels of analysis, or "samples," the GPU will perform on each pixel for the purposes of blending.

MSAA is the second most demanding form of AA behind super-sample anti-aliasing (SSAA), which renders a frame at a larger resolution and then downsamples it to the user's resolution.

Because of our 3GB framebuffer and the structure of the GCN Architecture, Radeon cards are very good at handling MSAA/SSAA.
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