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Is 1Gb VRAM really enough in todays games? - Page 13

post #121 of 132
Damn... it's a good thing that I only play AvP at 1680x1050 then (saw the pics on page 5, and noticed you upgraded from your 5850s, Almighty. ) because my 470 would CHOKE. I mean, 1680x1050 the game pulls around 1GB of memory and burns that card harder than anything I've seen elsewhere. Seriously, it burns it harder than furmark. XD
     
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post #122 of 132
Thread Starter 
Quote:
Originally Posted by Imglidinhere View Post
Damn... it's a good thing that I only play AvP at 1680x1050 then (saw the pics on page 5, and noticed you upgraded from your 5850s, Almighty. ) because my 470 would CHOKE. I mean, 1680x1050 the game pulls around 1GB of memory and burns that card harder than anything I've seen elsewhere. Seriously, it burns it harder than furmark. XD
Games are so much smoother on the 6970, The 2Gb has made such a difference in most of the newer games.

Of course I've lost overall performance compared to the 5850 crossfire but it's a decent enough trade off as I don't get stuttering or lag now caused by HDD thrashing
post #123 of 132
I will say that I am quite happy with my 570, but I do consider 1280MB VRAM just enough.
I had 1024MB GPU's and I've noticed their limitations a little more now with my 1.3GB'er.
Edited by amstech - 3/27/11 at 9:27am
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post #124 of 132
I <3 anecdotal evidence.

Question for you guys: Why, if more VRAM is important for higher minimums (ie when your VRAM hits its cap you see a massive drop in performance, so if your card never hits the cap, you shouldn't ever see this drop) why do ATI cards, which typically have higher amounts of VRAM than their nVidia counterparts, have much lower minimum framerates? Look at a 570/580 vs a 6970 2gb. Or a 480 vs a 5870 2gb. Doesn't make sense to me if VRAM is the limiting factor.
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post #125 of 132
Quote:
Originally Posted by KittensMewMew View Post
I <3 anecdotal evidence.

Question for you guys: Why, if more VRAM is important for higher minimums (ie when your VRAM hits its cap you see a massive drop in performance, so if your card never hits the cap, you shouldn't ever see this drop) why do ATI cards, which typically have higher amounts of VRAM than their nVidia counterparts, have much lower minimum framerates? Look at a 570/580 vs a 6970 2gb. Or a 480 vs a 5870 2gb. Doesn't make sense to me if VRAM is the limiting factor.
The architectures are not the same, so it's not possible to draw such a direct conclusion even though they are direct competitors. If you check the following link, you can see that memory bandwidth, GLOPS, pixel/texture fill rates are different for each:

http://www.gpureview.com/show_cards....=637&card2=638

Hence why some games have AMD cards performing better, whereas other games favor Nvidia more as it highly depends on how the game is designed and coded. Which is also why in high display resolutions along high resolution textures and AA, the VRAM becomes the limiting factor with Fermi GPU's and not for AMD as it boils down to architecture.
     
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post #126 of 132
Quote:
Originally Posted by covertash View Post
The architectures are not the same, so it's not possible to draw such a direct conclusion even though they are direct competitors. If you check the following link, you can see that memory bandwidth, GLOPS, pixel/texture fill rates are different for each:

http://www.gpureview.com/show_cards....=637&card2=638

Hence why some games have AMD cards performing better, whereas other games favor Nvidia more as it highly depends on how the game is designed and coded. Which is also why in high display resolutions along high resolution textures and AA, the VRAM becomes the limiting factor with Fermi GPU's and not for AMD as it boils down to architecture.
This is exactly my point, you can't just say "1gb of VRAM isn't enough at 1080p for today's games!" because there are so many other factors involved. The OP thinks that the higher minimums he is experiencing in games is simply due to his upgrade in VRAM to a 6970 2gb from CFX 5850s (1gb), when CFX has issues with minimum framerates in some instances.

Go look at reviews of the 6950 2gb. Despite the fact that it has 2gb of VRAM, it sits at almost the exact same FPS as the 5870 1GB from 1680x1050 all the way through to 2560x1600. The architechure, clock speed and VRAM capacity and speed all relate into your FPS, and one single part does not translate into a better experience.

Go look at GTS 250 1gb vs 512mb reviews. Same thing, there is maybe a 1 fps difference in most games. Or the 4870 512 vs 1gb. There are differences, but not usually drastic unplayable vs playable between the two.
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post #127 of 132
Quote:
Originally Posted by KittensMewMew View Post
This is exactly my point, you can't just say "1gb of VRAM isn't enough at 1080p for today's games!" because there are so many other factors involved. The OP thinks that the higher minimums he is experiencing in games is simply due to his upgrade in VRAM to a 6970 2gb from CFX 5850s (1gb), when CFX has issues with minimum framerates in some instances.

Go look at reviews of the 6950 2gb. Despite the fact that it has 2gb of VRAM, it sits at almost the exact same FPS as the 5870 1GB from 1680x1050 all the way through to 2560x1600. The architechure, clock speed and VRAM capacity and speed all relate into your FPS, and one single part does not translate into a better experience.

Go look at GTS 250 1gb vs 512mb reviews. Same thing, there is maybe a 1 fps difference in most games. Or the 4870 512 vs 1gb. There are differences, but not usually drastic unplayable vs playable between the two.
Don't get me wrong, I agree with what you are saying. For a single display resolution, especially at 1080p or lower, there aren't many games that will see usage above the 1GB of VRAM. But I also agree with the OP's sentiments that we are starting to see that happen, especially if a gamer is interested in playing with MODs that add gigs and gigs of content to games, on top of maximum graphical settings.

And to your point about the different architecture, you're right. It's difficult to prove a point when migrating to a completely different architecture that happens to also have more VRAM at the same time. You may be interested in this article that I posted a few pages back:

http://www.widescreengamingforum.com...eatured_Review

It pretty much justifies the notion that the higher the resolution and the more AA applied, the higher your VRAM requirements will be. This much is true. If you take notice of the VRAM usage graphs, you should also see that at 1920x1200, a larger number of games either meet or approach the 1GB VRAM mark, so we're really not too far off.
     
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post #128 of 132
Thread Starter 
Quote:
Originally Posted by KittensMewMew View Post
I <3 anecdotal evidence.

Question for you guys: Why, if more VRAM is important for higher minimums (ie when your VRAM hits its cap you see a massive drop in performance, so if your card never hits the cap, you shouldn't ever see this drop) why do ATI cards, which typically have higher amounts of VRAM than their nVidia counterparts, have much lower minimum framerates? Look at a 570/580 vs a 6970 2gb. Or a 480 vs a 5870 2gb. Doesn't make sense to me if VRAM is the limiting factor.
Min framerates have NOTHING to do with VRAM levels...

They're mainly CPU related.
post #129 of 132
Quote:
Originally Posted by philhalo66 View Post
same reason why people buy intel for more then double the price for maybe 0.6% performance increase. because people will buy them and the company knows it.
I was gonna post earlier, but I missed the bookmarking.... anyhow, you do realize a modern high end GPU has about 150GB/s+ of memory bandwidth, right? Even a triple channel i7 990X OC'd to 1866 will only get around 30GB/s, much less counting the PCIe 2.0 x16 bandwidth being less than that, and the fact that both of those interfaces have to be shared with other data... So using system RAM is all fine and dandy to prevent games from simply not loading textures, it's not going to be fast, nor a pleasent experience.
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post #130 of 132
When I played Crysis on my GTX 580, RAM usage used over 1GB, and I'm running it on 1920x1080 with all maxed settings, so no, 1GB is not enough these days.

At least higher end cards these days are equipped with more than 1GB and thats a good thing.
    
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