Some games stacking VRAM in multiple GPU's?

[WaitForMeImOnDialUp]

okay so we all know if you have two gpu's you dont get double the vram because they dont stack up....but is that changing?

shadow of morder, when i had only one 280x it would only say 3000 or so dedicated gpu ram, with 2 it shows over 6 gb of ram and was using over 4.5 gb (mem1 is gpu 1 memory) yes this is vram and not system ram,in afterburner system ram is under ram usage,mb

 

 

 

 

 

 

 

 

 

 

 

in advanced warfare, with one 280x the mem1 (gpu 1 memory) was 2999 and under, now with two 280x's it shows usage of 4.5gb to 5gb vram, but in the settings it only shows 2135 gb dedicated vram which is less than it showed with only one 280x. also this game runs like butt with crossfire..freezes and restarts.

 

 

 

 

anyone else with multiple gpus and these games wanna try this to see if thier vram is stacking? im sure im just a idiot and something not right

 

 

 

 

 

 

 

 

[Statik]

Umm.

 

If I'm not mistaken, it's not that the games choose not to stack VRAM, it's just that it can't physically be done atm..

 

I'm sure someone will be here shortly who actually knows what they're talking about,

[Guest]

MSI afterburner only shows the total VRAM usage. Hell, I can have 7.8GB VRAM usage in BF4 if I want. If you want the actual VRAM usage you have to divide that by the numbers of GPUs you're running. And if MSI afterburner handles it that way it wouldn't surprise me if games do it the same way. Your VRAM usage may be 5GB, but that's actually 2.5GB + 2.5GB mirrored on the other card. CoD:AW will use 85-ish% of your VRAM with the standard settings (you can change that in the config file, you can set it to 100% if you want), so your numbers make sense. Games are still just mirroring the VRAM on the second GPU, it's just the way that VRAM is handled by monitoring programs (and apparently games with VRAM information built in).

[WaitForMeImOnDialUp]

MSI afterburner only shows the total VRAM usage. Hell, I can have 7.8GB VRAM usage in BF4 if I want. If you want the actual VRAM usage you have to divide that by the numbers of GPUs you're running. And if MSI afterburner handles it that way it wouldn't surprise me if games do it the same way. Your VRAM usage may be 5GB, but that's actually 2.5GB + 2.5GB mirrored on the other card. CoD:AW will use 85-ish% of your VRAM with the standard settings (you can change that in the config file, you can set it to 100% if you want), so your numbers make sense. Games are still just mirroring the VRAM on the second GPU, it's just the way that VRAM is handled by monitoring programs (and apparently games with VRAM information built in).

ahhh okay that makes sense..you guys have to forgive me im a stupid noob when it comes to dual gpu's

[Guest]

ahhh okay that makes sense..you guys have to forgive me im a stupid noob when it comes to dual gpu's

 

np, it confused me as well the first time I saw it on MSI afterburner.