Hello,

I'm having the problem like it says in the title. I was thinking maybe it has something to do with Win7 pagefile?

Not really sure, but I have a 5970 which has 2GB of VRAM and when I use "SetDebugText 13" in game and then type "tdt" it shows my VRAM usage in the Waterfront at 1005mb, and shortly after I get a CTD.

Is Oblivion not recognizing that I have 2GB of VRAM? Crossfire is enabled, as well at Catalyst A.I. so it shouldn't be a problem of G-card settings.

Anyone having similar problems or know what is going on?

Thank you very much.

-J

Do you have a SINGLE card with 2GB or are you using 2 1GB cards?

Two 1GB cards in crossfire does not net you 2GB of accessible VRAM. The system will treat it as a 1GB pool.

If I'm reading Toms hardware right on this card its a Dual GPU graphics card with Crossfire native because its dual GPU. The memory will be shared between the two GPU's so instead of having one huge 2GB VRAM you have two sets of 1024MB or roughly that. Crossfire and SLI I believe work sort of the same way with memory allocation. The contents of memory is duplicated for each GPU or card so in effect you have half that memory. Not 2GB...

So thats about right for a CTD...

Damn! I did not know that. It is called an HD5970 2GB, and I only get 1GB of accessible VRAM? That svcks. So if I had say... two 4870 1GB in crossfire would I still only have 1GB in that situation as well?

Well, I had just tried editing my first post but it didn't work out so I will just paste this here if it means anything.



EDIT: Also, when I loaded up the save game where I had just crashed at 1005mb. After re-loading I was only at 794mb, and after running around the waterfront as I had before it never went over 850mb. Why is this?

Is there some sort of memory leak known with Oblivion>?

As you ran around the game loaded new cell data. The game keeps data in memory until it needs space for more data, so a memory leak its possible, but probably a very small one. You should try some of the performance mods like OSR and streamline, which take over memory management.

Yes. Because your 5970 is really two GPUs tied together with crossfire inside the card casing. Two separate cards in crossfire will produce the same result. As would two nVidia cards in SLi. It's just how the technology works. If you want a true 2GB, you need to get a card that has a single GPU with 2GB of memory on it. You have to really watch this with these cards.

I have just installed OSR now as we speak heh. Can Streamline and OSR be run together safely?

And as a general rule of thumb, if my VRAM max is 1GB, which if you say is correct it is, what amount of VRAM usage will start causing instability and potential CTD's ?

I thought I had 2GB so I was loading up on graphics/LoD mods like mad. May have to re-adjust a bit now finding this most disappointing fact out.

So what is the 2GB useful for then?! The card says 2GB of VRAM, and I only get 1GB? I'm still rather confused...

EDIT after seeing your post Arthmoor: So, the 2GB claim is a marketing scheme/scam then? I am in no way disappointed by my performance of the 5970 (lol) but I was looking forward to really pushing Oblivion to the max with a 2GB limit.

Yes. Many of us use both alongside. If you're using OSR you want to be sure and turn off Streamsmooth within Streamline as they'll fight each other for control.



You pretty much already know. But 1024MB of usage on your tdt display will be as far as it's going to tolerate. Which is why you crashed with 1005 being the last you saw, it never had the chance to update the figure.



I got bit by the same crap myself at first and had to take the thing back and get a real 2GB card. I didn't want to call it a scam, but it sure feels like one to me.

Yes you can use OSR and streamline together, just make sure to disable streamline's fps smoother since OSR does a better job of it.

When you have two GPU's working together to render a frame, they both need access to the same data. So if both GPUs have 1GB chip of dedicated memory, to split the rendering of the frame cross both cards both chips of 1GB will have have to be fill with the same data, thats how your 2GB video card becomes a 1GB effective video card. Its the same thing with dual and quad CPU cores. That why its important to know the difference between dedicated vs shared caches.

Is there even such thing as a 2GB video card at this time? I thought 1GB was the max at this point in time that has been made.

Well I can't seem to find any actual 2GB cards on newegg.com or mwave.com because they're all hot over the 5800 and 5900 series cards. But yes, they do exist, because I have one. 4870 2GB made by Sapphire. I generally don't CTD due to video issues until hitting somewhere past 1.4GB on the tdt display. It may not seem possible to hit figures that high, but I have, and it's because I did what you did and went nuts on graphics updates. Probably a bit too nuts even with what I have.

Haha, The 4096 LOD's are the big killer if you use those. The BTQ + Qarls normals/colors 4096x4096 LOD (which I think Qarl's looks a little too bumpy don't really like the look so I went with the 2048x2048 versions of them,) I think the 4096's use almost 400mb VRAM, whereas the 2048's use only 68, according to TOTO at least.

I may have to compromise on some of my things. I already got the PYFFI'ed meshes for QTP3, and I really don't want to go the redimized route, I want the full QTP3 as I should be able to with the "Fastest graphics card ever made," lol.

I honestly don't know what i'm going to get rid of, and I have yet to add Unique Landscapes yet O.o

Guess that all Depends on How much money you have... http://asus.com/product.aspx?P_ID=3OXEUQmsHmmewEyu&templete=2

Lol, woah. I bet the 5970 costs more however, those things are rare as can be I paid ~$800 for mine.

I mean, the extra VRAM really isn't needed unless you are heavily modding a game like Oblivion. I doubt Crysis even comes close to the 1GB VRAM mark or any other game that I have played, no issues with VRAM usage.

sad say to that card is not good for gaming...Its made for apps.

Gainward Geforce GTX-285, there is a 2 GB RAM version of it.

Nevermind.