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Windows 7: Video Ram cut in half?


15 Jun 2009   #1

Windows 8.1 Pro x64
 
 
Video Ram cut in half?

OK, so I have a BFG Geforce 9800 GT OC 1GB GDDR3 card.

Now, onboard video memory is 1024MB, obviously. However, whenever I do dxdiag, it tells me that I have "Approx. Total Memory: 494 MB".

What the hell? That's less than half of what I actually have. I didn't actually notice this until today, when I went to play Prototype on my PC for the first time, and it wouldn't let me set my resolution to anything above 1024x768.

According to Prototypes read me, the resolutions are locked at certain levels.

Quote:
Cards with less than 512 MB cannot access resolutions with widths of greater than 1280 or heights of 720. This means with a card of LESS THAN 512MB VRAM has these available:

640 x 480
800 x 480
800 x 600
1024 x 768
1152 x 720
1152 x 864
1280 x 720
1280 x 800

Cards with less than 1024 MB cannot access resolutions with widths of greater than 1600 or heights of 1080. This means with a card of LESS THAN 1024MB VRAM has these available:

The following are only available for cards with 512MB VRAM or more:
1280 x 1024
1440 x 900
1600 x 1200
1680 x 1050
1920 x 1080
1920 x 1200
2048 x 1152
2048 x 1536
2560 x 1600
Where is the rest of my VRAM? Any help is appreciated.

My System SpecsSystem Spec
.

16 Jun 2009   #2

 
 

What does it say when you access the advanced properties for the card? (right-click desktop -> Screen Resolution -> Advanced settings

Is it 1GB dedicated VRAM or shared?
My System SpecsSystem Spec
16 Jun 2009   #3

Windows 8.1 Pro x64
 
 

Nope, it says 1024 MB Dedicated memory

My System SpecsSystem Spec
.


16 Jun 2009   #4

Windows 7 32-bit; no 64 coz its a P4 478
 
 

LOL ur card is a genuine 1 GB card... but dxdiag only sees less than 1/2 of it...
The reason I said lol is coz my GC's RAM is 256MB but dxdiag sees 510 MB on that control panel windows sees 256 MB if im not mistaken.. You should try updating your graphic drivers.. Welcome to NVIDIA - World Leader in Visual Computing Technologies > Download Drivers>GeForce>GeForce 9 Series>YOUR OS> Language >Search>Accept licences... >Download>install...
then try the game...
My System SpecsSystem Spec
16 Jun 2009   #5

Windows 8.1 Pro x64
 
 

Yeah, I have tried reinstalling the drivers with a few different sets of Geforce drivers, including the latest WDDM 1.1 drivers. It hasn't helped. Everyone I've talked to, their dxdiag shows more VRAM than they actually have. Mine seems to be a very odd and uncommon problem.

Edit: Woohoo!!! I just installed the 190.15 drivers, and got a whopping 1MB of VRAM back!

Weird. I started playing Prototype today, and went in to see if I could change the resolution. I can get up to 1440x900 now. I have no idea what's going on...
My System SpecsSystem Spec
17 Jun 2009   #6

Windows 7 32-bit; no 64 coz its a P4 478
 
 

WOW! see driver updates ROX sometimes....!!!!!!!!! I also had unplayable frame rates on NFS Undercover with Ati CCC 8.10 then i updated to the latest 9.2 and BOOM! now its WAYYYY more playable.... (now i don't play it)
BTW, where did you get 190.15 drivers coz Welcome to NVIDIA - World Leader in Visual Computing Technologies doesn't list them....
My System SpecsSystem Spec
17 Jun 2009   #7

 

Quote   Quote: Originally Posted by akash3656 View Post
BTW, where did you get 190.15 drivers coz Welcome to NVIDIA - World Leader in Visual Computing Technologies doesn't list them....
190.15 Drivers have not been released via NVidia plus they are not Windows 7 WDDM 1.1 compatible
My System SpecsSystem Spec
17 Jun 2009   #8

Windows 7 32-bit; no 64 coz its a P4 478
 
 

Ok thx anyways...
My System SpecsSystem Spec
17 Jun 2009   #9

Windows 7 (x64)
 
 

Regarding the allowed resolution - Happy to see that was resolved in driver updates.

Regarding VRAM: Not everything is memory mapped. I do not see an issue here.
My System SpecsSystem Spec
17 Jun 2009   #10

Windows 8.1 Pro x64
 
 

Eh, I called BFG tech support, and they had no idea what was going on either. Whatever, as long as I get decent framerates on my games, I'm not to worried.

Quote:
190.15 Drivers have not been released via NVidia plus they are not Windows 7 WDDM 1.1 compatible
Mine say they are WDDM 1.1
My System SpecsSystem Spec
Reply

 Video Ram cut in half?




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