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Do you need 2GB VRAM? - Page 2

post #11 of 30
At stock a 560 Ti is slightly slower than a HD 6950. When both are overclocked to their limits the performance gap is even smaller.

For 1920x1080 BF3 can definitely use more than 1GB of VRAM on Ultra. But if you turn down AA from 4x to 2x it'll probably settle somewhere right above 1GB; the 570 has 1280MB.
    
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post #12 of 30
Quote:
Originally Posted by pioneerisloud View Post
Actually, that's incorrect. We are MORE than capable of utilizing 2-3GB of VRAM as it sits right now (6970's and 580's). Problem being, it requires 2, 3, or 4 of those cards, and an INSANELY high resolution (3x 1080p monitors or bigger).

For any single 1900x1200 display (or smaller), I agree. There's no reason to buy a card based off VRAM, especially when a 1GB card is sufficient like the 560Ti or the 460 1GB. You only need higher VRAM amounts when you use 1440p or 1600p, or multiple monitors (as of right now).
I disagree. I posted a video last week here on OCN proving that Metro 2033 maxed out Vram at 1080p on high settings with AA on, so I got frame rate drops. BF3 will be the same if you plan on playing with high levels of AA. As of right now I go over 900MB in Caspian Border on high settings with AA disabled. Imagine buying another card to CF in the future, you would be bottlenecked by Vram if you want to raise AA at all.
post #13 of 30
Quote:
Originally Posted by pioneerisloud View Post
No, you don't need 1.5 or 2GB of VRAM, not with a single monitor at 1200p or less.

Get the 570 and be happy, its the superior card.
The 570 might be a superior card but even at the resolution he's at, DX11 games will choke if he doesn't have enoug Vram. My 460m uses upwards of 1.3GB in AvP @ 1680x945.
     
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post #14 of 30
If you push settings far enough in selected games, you can make even 3GB GTX580s get within sweating distance of hitting a VRAM limitation (I'm thinking DX11 Crysis 2 with the high-res textures) on 1080p or so and it's easy as anything to run face-first into a VRAM limatation with triple-monitor gaming. Check the link in my sig for a 1GB SLI vs 2GB SLI comparison of some games.

Totally dependent on textures and engine, though. Deus Ex: Human Revolution won't break 800 or 900MB of VRAM even at 6064x1200 unless you start turning AA up a long, long way. Without AA, I rarely see usage exceeding 650MB. Oblivion with mods, Crysis and a host of others really eat VRAM though.

Edit: for most purposes on a single screen, a GTX570 will be more than sufficient.
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post #15 of 30
Quote:
Originally Posted by MinitroN View Post
At stock a 560 Ti is slightly slower than a HD 6950. When both are overclocked to their limits the performance gap is even smaller.

For 1920x1080 BF3 can definitely use more than 1GB of VRAM on Ultra. But if you turn down AA from 4x to 2x it'll probably settle somewhere right above 1GB; the 570 has 1280MB.
It takes a gtx 560ti (stock 822 MHz) overlocked to 900/950 to match a HD 6950 at stock 800Mhz, the gtx 560ti isn't going much higher than 1Ghz while the HD 6950 still has 200Mhz left before it reaches it's common limit of 1GHz, don't see a gtx 560ti at 1Ghz competing much with a HD 6950 at 1Ghz.
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post #16 of 30
Quote:
Originally Posted by Paradigm Shifter View Post
If you push settings far enough in selected games, you can make even 3GB GTX580s get within sweating distance of hitting a VRAM limitation (I'm thinking DX11 Crysis 2 with the high-res textures) on 1080p or so and it's easy as anything to run face-first into a VRAM limatation with triple-monitor gaming. Check the link in my sig for a 1GB SLI vs 2GB SLI comparison of some games.

Totally dependent on textures and engine, though. Deus Ex: Human Revolution won't break 800 or 900MB of VRAM even at 6064x1200 unless you start turning AA up a long, long way. Without AA, I rarely see usage exceeding 650MB. Oblivion with mods, Crysis and a host of others really eat VRAM though.

Edit: for most purposes on a single screen, a GTX570 will be more than sufficient.
Exactly my point to those who claim 1GB VRAM isn't enough for a single monitor due to VRAM usage but all of a sudden 2GB across 3 monitors even though it's exceeding 2GB VRAM enough?

So people think that across 3 monitors going over 2GB VRAM dosent have any effect on FPS but going over VRAM on one monitor does?

Anyone else see the problem in this failed hipocracy?

On a single monitor the GTX 570 is going to be enough on a single monitor like Pioneer said in previous post and many others concur.
     
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post #17 of 30
Going over 1GB is going to be a 'much' bigger issue than going over 2GB as the swapping to system ram will be much higher for a 1GB card.


Just for fun, a few games at 1680x1050 using over 1.5GB Vram.


Crysis 2 1680x1050







Rage 1680x1050





Fallout NV 1680x1050







Oblivion 1680x1050



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post #18 of 30
Quote:
Originally Posted by Wulfgar View Post
A game will store textures & stuff into video memory but it won't access it all at the same time. That's why BF3 can be played without major FPS drops on a GTX 560TI.
Until someone offers an explanation of what happened here, I'm going to disagree. This is a shot of MSI Afterburner while running BF3 on Ultra settings w/ my 1 GB wonder. Game seemed to be ok at first...looked FANTASTIC and much better than High settings. Then after a couple minutes, I felt some stutter, then some 3.3 FPS action, lol!

post #19 of 30
Quote:
Originally Posted by Jodiuh View Post
Until someone offers an explanation of what happened here, I'm going to disagree. This is a shot of MSI Afterburner while running BF3 on Ultra settings w/ my 1 GB wonder. Game seemed to be ok at first...looked FANTASTIC and much better than High settings. Then after a couple minutes, I felt some stutter, then some 3.3 FPS action, lol!

Disable 'enable hardware physx' settings in game. FPS drops like that when enabled if you don't have a deticated physx card.
     
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post #20 of 30
Quote:
Originally Posted by Arizonian View Post
Disable 'enable hardware physx' settings in game.
AFAIK, no PhysX in BF3. At least, I didn't see that option while playing.

FWIW, I could feel the stutter as it approached 1000+ VRAM via Afterburner.
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