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What/How do you benefit from more VRam?

post #1 of 13
Thread Starter 
Hi everyone,

Just like what the title says. What do you benefit from it. Since I've seen some Nvidia card with 1GB at the price of a AMD 2GB card.

From what I know usually it depends on the game if its heavy then it takes up more VRAM such as enabling AA and or even using multiple displays. Willing to learn more about this.

Thank you,
Armen
post #2 of 13
Interesting topic since I'm not entirely sure either. From what I understand Vram is on a GPU so it doesn't have to take the memory from elsewhere, thus giving you better performance in games and 3D applications.
post #3 of 13
no affect on resolutions 1080p<<br />
you need more vram 1080p>
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post #4 of 13
Thread Starter 
@E-Peen
Not entirely sure either. That's why I'm wondering.

For example the 560Ti 1GB Vs. 6950 2GB but right now I'm seeing the 560Ti is at the same level of the 6950 or even higher at some games. I even know that some games were made for Nvidia cards so the 560Ti is higher in that case.
post #5 of 13
Quote:
Originally Posted by Johnny Guitar;12670178 
no affect on resolutions 1080p<<br />
you need more vram 1080p>

As stated above, the higher the resolution the more textures you are loading onto the screen and more RAM is needed and then yet more for AA. It soon gets exponential and you run out of VRAM.

On my Crossfired 5870's I can max out Dirt 2 at 6048x1080 but MWLL for Crysis Wars is another matter entirely. Had to make my own autoexec config to get that looking good and playing well within the 1GB of VRAM.

If you can afford more VRAM then get it.
    
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post #6 of 13
VRAM requirement scales with the resolution you run, and with the amount of anti-aliasing you use.

I can easily use the full 1280mb or so of my 470s running at 2560x1600 with only some anti aliasing.
post #7 of 13
Interesting.
post #8 of 13
AS previously stated if you are running at or under 1080p then you don't have to worry about it. If you're going past that then you are going to need more VRAM for the resolution and the AA.
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post #9 of 13
Thread Starter 
I'm actually thinking of getting more VRAM if that's the case. I know I'm running at a lower resolution but of course I don't want to get a 1GB then regret it in the near future I might as well go to a higher resolution monitor since the 2GB AMD card is not far away priced from the Nvidia 560Ti 1GB.
post #10 of 13
Toms hardware did a great article on ram usage and gaming..its a little dated but still useful.

http://www.tomshardware.com/reviews/graphics-ram-4870,2428.html
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