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

[Kankkis]

Originally Posted by Armatian

No mem is shared, is duplicated, dual gpu cards are the same like one gpu card with crossfire/sli conection inside the card.

True, that's the reason why my game is sturrering like hell, i got 5970 2gb but really it uses only 1gb, there is people who's getting allmost smooth gameplay with over 1gb.

Weird thing is that even i play all setting about min, i got stuttering and my hd loading, how the hell game can use so much vram even low detail?

Kankkis

[louisv]

SLI stands for Scan Line Interleaving...

Simply put if you have two cards in sli, one card does the top part of the screen and the other does the rest. Logically this means that the two memories must have ALL the information in each.

Double cards are a compact SLI package, that is all.

Louis

[adonys]

yes, but that doesn't mean they can't have both GPU accessing the whole memory (as the memory is on the same card, the accesing speed should be faster than accessing the other GPU's memory via a SLI link).

is highly improbable, but as none of us really knows the way the hardware of dual GPU works, we can't have a say in this.

that's why I said we need to dig this up.

[Porksmuggler]

Originally Posted by adonys

but as none of us really knows the way the hardware of dual GPU works, we can't have a say in this.

Each GPU maintains it's own frame buffer, rendering data is duplicated in each frame buffer. VRAM is not pooled.

[madrebel]

Originally Posted by louisv

SLI stands for Scan Line Interleaving...

no this is what sli used to stand for. sli now = scalable link interface.

[Ataros]

I can not find any program to monitor vram usage of an ATI card. MSI Afterburner, GPU-Z do not show it for an ATI. Any suggestions?

[adonys]

try AIDA64, as the others did in the other thread.

[jimbop]

Originally Posted by Ataros

I can not find any program to monitor vram usage of an ATI card. MSI Afterburner, GPU-Z do not show it for an ATI. Any suggestions?

Edit: beaten to it!

[madrebel]

yes it does you just have to setup realtime monitoring.

evga precision and msi afterburner are just different versions of rivatuner.

here is a link
http://www.vgaforum.com/showthread.p...nitoring-Guide

or just google rivatuner monitoring guide and figure it out from there. it isn't terribly difficult.

if you want to get real fancy then you can setup a profile that sets the clocks to default when no 3d apps are running and another profile to apply an overclocked profile when a 3d app is running and have them apply automagically.

*edit* the pics i posted on page 2 show in the upper right hand what real time monitoring looks like. it puts an overlay on the screen when a game is running. you can change that position around too if you like. you can also change the color too.

[Ataros]

Originally Posted by madrebel

yes it does you just have to setup realtime monitoring.

evga precision and msi afterburner are just different versions of rivatuner.

As far as I know rivatuner is supposed to be used with nVidia cards. Do you manage to use it to monitor ATI memory usage?