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PostPosted: 04 Mar 2013, 02:39 
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Joined: 27 Feb 2013, 16:25
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Location: Gloucester, UK
DigiHound wrote:
Anything that pushes Titan is going to push the GTX 690 a lot harder. Dual Titan's in SLI give you 6GB, dual GTX 690's give you 2GB and increased microstuttering. Since all data has to be duplicated across each GPU, the GTX 690's RAM is more properly stated as 2x2GB, not 4GB.

But there's actually another question waiting in the wings. While testing Titan (disclaimer: I write for PC Magazine, Extremetech, and Hot Hardware) I ran into an issue where multiple games only picked up Titan as having 3-4GB of RAM, not 6GB.

There's a reason for this. 32-bit games aren't picking up on the full 6GB of RAM. I don't know if that means they can't use it or not -- I've got a question for this in to NV. My understanding is that the GPU decides internally how to allocate VRAM, and so the fact that games are 32-bit shouldn't matter much.


That's interesting, have you managed to hit the 4GB then or was that just what the game was detecting? I don't know much about how VRAM works but I would have thought that a piece of software which is 32bit should only be able to reference only 4GB whether it's on a graphics card or a motherboard.

I wonder if we could write something in 32bit to fill as much VRAM as possible without it garbage collecting to see if it will go over or reference more than 4GB

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PostPosted: 04 Mar 2013, 06:08 
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Joined: 01 Mar 2013, 02:40
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It's difficult to say. The new Unigine Valley benchmark reports 4GB of RAM on the GTX Titan, while the game Shogun 2 (and several other titles) report 3GB.

The only time I've seen an out-of-RAM error in a game was when benchmarking Shogun 2 and the GTX 680. Using 5760x1080 with 8x MSAA and all detail levels maxed out caused the game to throw an "Exceeded available memory by 150MB" on the GTX 680. This only happened in the benchmark scene -- setting those levels in-game wasn't a problem.

The only game I can think of that shipped with a 64-bit binary was the original Crysis. While it might be possible to load up enough mods to use over 3-4GB of RAM (and thereby compare performance at 5760x1080), I'm not certain we'd see a difference. You need a certain amount of GPU horsepower before RAM becomes a bottleneck -- if the low frame rates in a given title were caused by pixel shader bottlenecks rather than RAM storage, then it wouldn't really matter -- even with Titan.


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PostPosted: 04 Mar 2013, 16:27 
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Joined: 01 Mar 2013, 02:40
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According to NV, the 32-bit limitation *does* apply. Next-gen games are expected to use 64-bit, so in the long term, this won't be a problem.


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PostPosted: 04 Mar 2013, 20:33 
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Joined: 20 Nov 2010, 05:10
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Thanks for everyone's insight into 3 screen monitors, nvidia Titan GTX seems to be the way to go. I plan on going with Windows 7 64 bit.

Here are some possible 27" monitors:

Asus

http://www.newegg.com/Product/Product.aspx?Item=N82E16824236294

or

Dell

http://www.newegg.com/Product/Product.aspx?Item=N82E16824260111

http://www.newegg.com/Product/Product.aspx?Item=N82E16824260038

or

HP
http://www.newegg.com/Product/Product.aspx?Item=N82E16824176242

Any recommendations or insight which would do better?


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PostPosted: 04 Mar 2013, 20:59 
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Joined: 01 Mar 2013, 02:40
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The only Asus monitors I've used have been members of the VG278 family I've got a 3D version and the 3x 27" displays I mentioned earlier. With that said, I like them quite a bit. The one feature they don't have, that I wish they did, was the ability to rotate into Portrait. I would've liked to use that mode in my testing.

It looks like the $699 models *do* have Tilt, Swivel, and Pivot. So that's good.

Check Anandtech for reviews, maybe?


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PostPosted: 08 Mar 2013, 16:49 
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Joined: 12 Nov 2011, 22:00
Posts: 241
all the cheap top pics for monitors in the 27 range arent vesa compatible.
my top pics in the 27 range are the new LG panel IPS's that came out at the tail end of 2012

things like the aoc i2757fh and viewsonic vx2770smh.
Im also pretty partial to the LG apple panel korean models. like the shimian qh270 and the catleap q270.
nothing beats 2560x1440 for less than $400. but sadly none of those have vesa bracket mounts :(

i was / am in a similar boat as you, but ive decided to bag the stand, deal with either using the stands, fabbing stands, or propping them higher, and i'm going with the AOC.

its all about the budget for me though :).
good luck finding something that suites your needs!

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PostPosted: 09 Mar 2013, 04:35 
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Joined: 08 Jul 2012, 23:05
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First off, let me say congratulations for coming into the club :D

Ok, so here's my very biased suggestion on screens (since they are what I use):

Go w/ 3x Crossover 27Q LED (for example, but not limited to http://www.ebay.com/itm/New-CROSSOVER-2 ... 1c258965ec)

They are 2560x1440, amazing, and they have VESA mount for ease of install. I originally got one, and liked it so much i got 2x more!

Second, for video card, do not, i repeat, DO NOT get a vid card w/ less than 3bg of vram!!!!!! A 690GTX will NOT handle 3 of these due to 2gb of ram. I cannot stress this enough, you need 3gb+ of RAM, and 4gb+ would prob be preferable. I currently run 2x EVGA 670GTX 4GB FTW in SLI. I got these on release, so I didn't have a choice of Titan. The good thing about Titan is that its only 1 gpu, so you don't have to worry about SLI issues. It looks like Titan should be comparable if not faster than my 2x 670 (which i can play most things on max/high), so you'd probably be good. Only thing is you'd need to get a DP -> DL-DVI plug/adapter, which may be an issue.

Anyways, just some food for thought. Good luck on the build! I am currently looking at perhaps getting one of the WSGF stands, as they look a bit sturdier than my current ones. Although its obviously at a premium: $400 vs $90.


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