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GTX 580: 1.5GB or 3GB @ 1920x1200 w/lotsa AA?

post #1 of 17
Thread Starter 
There are a few threads that sort of answer this, but not exactly. I've got a 1920x1200 monitor, and I like to game with a lot of AA (at least 8x, preferably 16x), and supersampling transparency AA. I plan on going SLI in a few months, and I don't plan on upgrading my monitor, or using multiple monitors.

The other threads tend to say that 1.5GB is enough for 1920x1080, but my resolution is slightly higher...and the other threads say that you only need 3GB for high AA settings, but I like lots of AA...and the other threads say that 3GB is preferable if you're gonna go SLI, which I plan to (I think the argument is that GTX 580 SLI is so future-proof that you may as well prepare for vram-hungry games that we won't see for a few years; it may also be that such a setup would somehow be bottlenecked by lower vram).

Should I go with 1.5GB vram, or 3GB? Will I see a difference? Have I already answered my own question? I'm willing to pay the extra $$$ if the difference is noticeable...I think. Currently playing a lot of BC2, and looking forward to BF3. Thanks for any help.
post #2 of 17
Quote:
Originally Posted by seward View Post
There are a few threads that sort of answer this, but not exactly. I've got a 1920x1200 monitor, and I like to game with a lot of AA (at least 8x, preferably 16x), and supersampling transparency AA. I plan on going SLI in a few months, and I don't plan on upgrading my monitor, or using multiple monitors.

The other threads tend to say that 1.5GB is enough for 1920x1080, but my resolution is slightly higher...and the other threads say that you only need 3GB for high AA settings, but I like lots of AA...and the other threads say that 3GB is preferable if you're gonna go SLI, which I plan to (I think the argument is that GTX 580 SLI is so future-proof that you may as well prepare for vram-hungry games that we won't see for a few years; it may also be that such a setup would somehow be bottlenecked by lower vram).

Should I go with 1.5GB vram, or 3GB? Will I see a difference? Have I already answered my own question? I'm willing to pay the extra $$$ if the difference is noticeable...I think. Currently playing a lot of BC2, and looking forward to BF3. Thanks for any help.


Are you currently playing on that specific monitor? I think you'd be better informed of memory utilization if you turned on BFBC2 and watched your memory usage with AA off and then turned up (not worrying about FPS) And if you use anywhere near 1gb, you might want to get the larger 3gb cards. If you're closer to 600mb with AA turned up, then you'll only need SLI 3gb cards if you're doing surround vision, or whatever it's called with 3 monitors.
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post #3 of 17
i think if u running 1920x1200 1.5gb is enough , unless u running 2560x1600 with max AA
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post #4 of 17
1.5gb. Don't think too much, just go for the cheaper 1.5.
    
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post #5 of 17
3 GB is only needed for multi-monitor. 1.5 GB is enough for 1200p. by the time that u run out of vram, ur fps would be so low as to be unplayable anyway.
now SLI maybe a different story, so choose wisely.
for reference, i play games just fine at 1920x1080 with 768 MB of ram
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post #6 of 17
anything sub 2560x1600, 1.5gb will do.
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post #7 of 17
1.5 for sure!
post #8 of 17
^^ This....Nvidia surround = 3gb....
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post #9 of 17
The only games I played that used the 1.4-1.5gb ram are Batman and Crysis at 1920x1200. I haven't tried Metro yet. If you know for sure you do not want to upgrade monitors the 1.5gb should be fine. People use to tell me that no game will use 1.5gb and now I know they are plain wrong.
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post #10 of 17
Quote:
Originally Posted by james8 View Post
3 GB is only needed for multi-monitor. 1.5 GB is enough for 1200p. by the time that u run out of vram, ur fps would be so low as to be unplayable anyway.
now SLI maybe a different story, so choose wisely.
for reference, i play games just fine at 1920x1080 with 768 MB of ram
Wait, what? Didn't you have 470's and a q6600 like a week ago? What'd I miss?

@OP: 1.5GB card is perfect for that res. I'm the same way as you about AA, and have the same size monitor. I've only run out of vram in one scenario, that's Call of Pripyat with a high-res texture mod. 1.5GB is plenty for 1920x1200, though, believe me.
    
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