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post #2311 of 8944
Quote:
Originally Posted by thestache View Post

They aren't.
Hook my system up to my three 1200P screens and 2800MB is used in most Battlefield 3 maps with Ultra settings. Hook my brothers GTX 690 rig (identical except GPUs) up to them and without AA or Motion Blur (uses around 1900) it'll run beautifully until it hits the VRAM wall and then it stutters like crazy and jumps around 5-20FPS and the card becomes a paperweight.
Sure 4GB isn't needed to run a surround set-up if you run less than ideal settings (no AA etc) but if you intend on playing games with the highest settings or as high as the processing power of your GPUs dictates then 4GB is needed or you'll have the same problems I had with my GTX 690 and was the reason I sold it. My GTX 690 ran out of VRAM long before it ran out of processing power. Which is just stupid.

2565MB

"You might have to sacrifice some or even all the AA on a relatively extremely small sample of games" is NOT the same thing as "It doesn't work". That's nonsense. And believe it or not, there's actually some people who couldn't give a crap about BF3, because they don't play it *brettjv raises hand*

Interestingly, if you check the [H] review of BF3 multiplayer when they tested it with 2x680 (2GB) vs. 2x7970 (3GB), they found that NEITHER setup had the graphical 'umph' necessary to use ANY AA with either of them, AND they found that the 2GB card actually had higher max playable settings. Go figure headscratch.gif

Obviously, having 4GB is preferable for surround, and may allow slightly higher levels of AA, or more texture mods, but it's not even remotely close to true to say that 2GB cards won't work for Surround. I don't think there's any game out there you couldn't max out with at least FXAA on 2GB cards (although you'd likely need 2-3 cards in SLI to get playable frames) at this point in time. I've no doubt that 99% of the games that one might ever run on such a setup would work identically on 2GB cards vs. 4GB cards.

It's cool if you find the 2GB cards 'unsatisfactory to your standards', but to state outright that they 'won't work' ... is misleading at best rolleyes.gif

The point some others have tried to make to you is the fact that a game 'uses' 2800MB of vram in NO WAY dictates that a 2GB card can't run it w/o issues. What you're talking about as 'usage' is really nothing more than 'memory space reserved for use'. Some game engines will reserve far more space than than they actually need for normal operation, simply because it's THERE. There is no such measurement as real-time, bona-fide 'vram usage'. The overhead needed to calculate it (so it could be presented to the user) would be way too high to ever make it a worth-while endeavour. As such, not one of us has EVER seen a direct measurement of how much vram ANY game has EVER 'used'. We just know what it RESERVED for it's own use. Big difference.

On a side note, I'm frankly astounded regarding the complete paucity of benchmarks on the web comparing the 2GB vs. the 4GB cards in SLI running surround resolutions ... why has NOBODY friggin done that type of review yet?
Edited by brettjv - 12/15/12 at 12:35am
    
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post #2312 of 8944
A 690 becomes a paper weight in surround...Send me that 690 and I will send you a very nice paper weight in return. biggrin.gif

Thestache, you seem to be missing the point totally. regardless if you have 2*2GB 680's or 2*4GB 680's you will not have enough GPU grunt to play latest games on full ultra detail. In FarCry 3, I have enough VRAM to cope with 2*MSAA and everything set to max detail but with ~40fps return, this is not playable IMO. I put MSAA to *8 and it does break my 2GB limit but if it was ~40 fps with 2*MSAA, what would the frame returns be with 8*MSAA?

You see what I and others are saying? You will need 3*680 to power that game or maybe even 4... You have the right amount of VRAM to do this but it would be pointless for me to buy another 680, purely because I feel over 3 screens a slight downgrade on AA is perfectly acceptable and as anyone knows, AA and 3D is a no no, as AA ruins the 3D effect.
    
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post #2313 of 8944
Quote:
Originally Posted by Descadent View Post

you got any videos of you playing racing games on that setup?!
No videos. I'll tell you what though, a really good racing game is where triple screens shine. They actually cater to triple screens. No stretching on the side screens or anything, everything looks perfect. There are settings in game for bezel componsation, side monitor angle, and render 3 screens. You dont run your corrected bezel settings just 5760x1080 and the game fixes everything for you so that everything lines up perfect. Everything is where it would be in real life when you look at the screens. That's why i have the side screens at a pretty good angle of 60 degrees. If a car is beside me in game I turn my head to the side and it's exactly where it should be on screen. I have them so that they come back far enough beside me to be even with me eyes so that I have 180 degrees of in game viewing. You haven't really seen what 3 screens should be like untiil you play something like iRacing. It's pretty amazing at how well they make 3 screens work when compared to other games. I imagine the flight sims are the same, but I haven't tried any of them yet.

Here's a video another guy made of how to setup the screens for iRacing. Go to the 9;00 mark and He shows what it looks like sitting in it. In the video it kind of looks like the view is bent some where the screens meet, but it's really not like that when you are sitting there. Everything meets up perfect of you set it up right.

Edited by bevo - 12/15/12 at 7:28am
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post #2314 of 8944
Quote:
Originally Posted by wermad View Post

What rads are you running. Great looking rig thumb.gif
@ Emett: sweet F1 wallpaper thumb.gif

Cheers smile.gif

I have a 360 XSPC RX in the top and a 240 XSPC RX in the bottom. Temps are superb with the 3930K at 4.6 (1.34V) running at ~50C and the GPU's at 50C also all on load.
    
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post #2315 of 8944
Quote:
Originally Posted by Gregster View Post

Cheers smile.gif
I have a 360 XSPC RX in the top and a 240 XSPC RX in the bottom. Temps are superb with the 3930K at 4.6 (1.34V) running at ~50C and the GPU's at 50C also all on load.

Sweet! That Switch is very versatile. Impressive temps on that hexacore too! I managed to get my old 3820 to 4.66 w/ temps ~55c. I went back to SB as I like the clocks better biggrin.gif. I love the RX series and i had two 480s powering my first Surround setup (triple 6970s and then 580 3gb).



I ended up putting my new rig under my desk as the sheer weight was bowing the cheap desk :0


I am using a triple monitor stand. not perfect but works great for portrait mode.
post #2316 of 8944
Quote:
Originally Posted by Gregster View Post

A 690 becomes a paper weight in surround...Send me that 690 and I will send you a very nice paper weight in return. biggrin.gif
Thestache, you seem to be missing the point totally. regardless if you have 2*2GB 680's or 2*4GB 680's you will not have enough GPU grunt to play latest games on full ultra detail. In FarCry 3, I have enough VRAM to cope with 2*MSAA and everything set to max detail but with ~40fps return, this is not playable IMO. I put MSAA to *8 and it does break my 2GB limit but if it was ~40 fps with 2*MSAA, what would the frame returns be with 8*MSAA?
You see what I and others are saying? You will need 3*680 to power that game or maybe even 4... You have the right amount of VRAM to do this but it would be pointless for me to buy another 680, purely because I feel over 3 screens a slight downgrade on AA is perfectly acceptable and as anyone knows, AA and 3D is a no no, as AA ruins the 3D effect.

I completely see what you're getting at and if what you're saying was the case I would agree 100%. But the problem is my GTX 690 would run out of VRAM before it ran out of processing power (average FPS dropped below 60FPS). This was the case in battlefield 3 especially on the back to karkand map pack. One minute 90FPS or 60FPS with 70-80 usage and vsync on and then suddenly 5-20FPS once it would hit the wall.

We've proven this with multiple games in the GTX 690 owners thread several times so go have a read if you seek benchmarks. We're arguing the same thing but the thing is I've seen it happen far too often with when it shouldn't and because of it I know that my statements are right.

Quote:
Originally Posted by brettjv View Post

"You might have to sacrifice some or even all the AA on a relatively extremely small sample of games" is NOT the same thing as "It doesn't work". That's nonsense. And believe it or not, there's actually some people who couldn't give a crap about BF3, because they don't play it *brettjv raises hand*
Interestingly, if you check the [H] review of BF3 multiplayer when they tested it with 2x680 (2GB) vs. 2x7970 (3GB), they found that NEITHER setup had the graphical 'umph' necessary to use ANY AA with either of them, AND they found that the 2GB card actually had higher max playable settings. Go figure headscratch.gif
Obviously, having 4GB is preferable for surround, and may allow slightly higher levels of AA, or more texture mods, but it's not even remotely close to true to say that 2GB cards won't work for Surround. I don't think there's any game out there you couldn't max out with at least FXAA on 2GB cards (although you'd likely need 2-3 cards in SLI to get playable frames) at this point in time. I've no doubt that 99% of the games that one might ever run on such a setup would work identically on 2GB cards vs. 4GB cards.
It's cool if you find the 2GB cards 'unsatisfactory to your standards', but to state outright that they 'won't work' ... is misleading at best rolleyes.gif
The point some others have tried to make to you is the fact that a game 'uses' 2800MB of vram in NO WAY dictates that a 2GB card can't run it w/o issues. What you're talking about as 'usage' is really nothing more than 'memory space reserved for use'. Some game engines will reserve far more space than than they actually need for normal operation, simply because it's THERE. There is no such measurement as real-time, bona-fide 'vram usage'. The overhead needed to calculate it (so it could be presented to the user) would be way too high to ever make it a worth-while endeavour. As such, not one of us has EVER seen a direct measurement of how much vram ANY game has EVER 'used'. We just know what it RESERVED for it's own use. Big difference.
On a side note, I'm frankly astounded regarding the complete paucity of benchmarks on the web comparing the 2GB vs. the 4GB cards in SLI running surround resolutions ... why has NOBODY friggin done that type of review yet?

I don't understand why some of you get soo upset over this. A 2GB card will run out of VRAM before it runs out of processing power on a triple 1200P set-up. If it didn't I wouldn't have replaced it with two 4GB Gainward Phantoms which personally I hate, compared to my great overclocking GTX 690. Maybe 1080P you dip and duck around the wall just enough to not have the problems t I did but I can't imagine it having that much of a difference.

But I agree 100% that the sole focus of benchmark sites with surround reviews should be VRAM used and the settings they used to get the numbers before they actually do the benchmarks because they are misleading.
    
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post #2317 of 8944
Quote:
Originally Posted by Descadent View Post

you got any videos of you playing racing games on that setup?!

I got one of me racing on three screens!
Watch me lean at the corners biggrin.gif
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post #2318 of 8944
^
that's sic bro...
post #2319 of 8944
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Originally Posted by malmental View Post

^
that's sic bro...

It's wicked mate thumb.gif
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post #2320 of 8944
cheers..
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