VRAM Usage - 6970 (2 GB) vs. GTX 580 (1,5 GB) vs. GTX 580 (3 GB)

[GOZR]

The best way for SLI is split rendering half the screen and the other for the other half..

Split work better no matter what .. NVIDIA profile now do not have this option but i tried all and it's still better for high textured sim

[Armatian]

Split frame doesn't share the load evenly, there's no perfect method, you can easily have one half having a huge HDR/shading workload and the other half showing the floor.

On topic: It looks clear in luthier statements that the engine need resource optimizing (should improve memory use), and more fine threading, because the same thread that renders, needs to load finer textures when you'r close to ground, hence horrible stutter you all see.

[Slechtvalk]

Originally Posted by madrebel

no, you can't. each GPU has X memory. gpu1 can't access gpu2's memory. if GPU2 even wanted to access GPU1's buffer then this would slow down the frame draw process which is why it isn't done.

this is setup picture from someone with 5970 (2 gig memory), when i use same settings (with my 1 gig memory card) you see video memory usage over 100%, and he's only using 51% of his memory (its says on picture below) which means he does got 2 gig video memory?

And why would ATI sell that card saying it has 2 gig when you only can use 1 gig anyways?

[doghous3]

@Slechtvalk

The HD5970 is a duel GPU card. Each GPU is assigned 1Gb of RAM.

I can confirm that CoD does not invoke the second GPU. Hopefully the upcoming patches will resolve this.

[Kankkis]

Originally Posted by Slechtvalk

this is setup picture from someone with 5970 (2 gig memory), when i use same settings (with my 1 gig memory card) you see video memory usage over 100%, and he's only using 51% of his memory (its says on picture below) which means he does got 2 gig video memory?

And why would ATI sell that card saying it has 2 gig when you only can use 1 gig anyways?

I have 5970 2gb too and same 51%

But this is truth, games only use that 1gb, maybe rof laucher see that 2gb wrong way, my rof is totally smooth with full settings.

[camel24hrs]

Vram makes a huge difference in ROF. (I figure this is the closest sim to COD at the moment) In the ROF setup panel it will tell you how much memory you use as you put in your settings. (And checking with MSI Afterburner it is right on the money) With everything set to max 8x Antializing and 8x Anisotropic and all other sttings to the max level I use 56% of my available vram and that is on a 2 gig geforce 560Ti card. All flights are over land and it is really good graphics in this flight sim. ( I get low 40s to high 50s fps with no shutters by the way). Gogamer has April 18th for my shipment date. I have second day air and I will find out then how it does on a 2 gig card. I am not in any hurry as I only had ROF for a couple of months and have been having a blast with it.

When I did get my card I decided to go with the most Vram that I could get on my series of card.......I figured it could never hurt to have it even if I did not need it. And boy I am glad I got it !!!

[Buchon]

Is true that this game is VRAM demanding but Im playing fine with 1 GB of VRAM.

But i guess that the players with 512 VRAM will have problems, the best way to free up VRAM is shoot down AA.

[camel24hrs]

Originally Posted by Buchon

Is true that this game is VRAM demanding but Im playing fine with 1 GB of VRAM.

But i guess that the players with 512 VRAM will have problems, the best way to free up VRAM is shoot down AA.

Like wise in ROF. It doesnt take a 2 gig card to run the sim.....however if you want to run it will all the bells and whistles turned on....then you need more than 1 gig, 1.5 at least.