Shared graphics memoey

[lauris47]

Hello, I saw dude on internet with same laptop runnin 3gb of ram on his video card I want to do the same . I know that somehow you can enable memory sharing with video cards memory.
Mine card :
1 http://img689.imageshack.us/i/nvidiagtx2601gb.png/
2 http://img46.imageshack.us/img46/360...notenough.png/

Doodles card ( I saw on gta IV video ) :
http://img203.imageshack.us/i/nvidiagtx2603gb.png/

so not tell me that you don't need so much ram on your card , I just want to, I have 6gb main memory wich I don't need /;
Maybe with rivatuner it is possible ? help ! :&

[Laykun]

He probably used the nomemrestrict and vidmem executable arguments to launch his game. It fools GTA IV into thinking you have more VRAM than you actually physically have, however I've seen no benefit.

Shared memory on laptops is usually only available for low end laptops that share system memory with the video cards. Discrete solutions like your 260m will have their own dedicated video memory which is much faster than system ram for these types of things.

I'm unsure about new nvidia laptop discrete chips but it's more than likely that you won't be able to do this, and it would also destroy your framerate.

Set the textures to medium and be happy it plays at all.

[lauris47]

I can play on high without lag but I just want to add more ram to play on very high shadows ... why it should destroy frame rates ? Adding ram to video card doesn't mean replacing by rams which has lower speed ?

Originally Posted by Laykun

He probably used the nomemrestrict and vidmem executable arguments to launch his game. It fools GTA IV into thinking you have more VRAM than you actually physically have, however I've seen no benefit.

Shared memory on laptops is usually only available for low end laptops that share system memory with the video cards. Discrete solutions like your 260m will have their own dedicated video memory which is much faster than system ram for these types of things.

I'm unsure about new nvidia laptop discrete chips but it's more than likely that you won't be able to do this, and it would also destroy your framerate.

Set the textures to medium and be happy it plays at all.

[Laykun]

Originally Posted by lauris47

I can play on high without lag but I just want to add more ram to play on very high shadows ... why it should destroy frame rates ? Adding ram to video card doesn't mean replacing by rams which has lower speed ?

Video card memory is built onto the board that your video card uses. What you're suggesting is using shared memory which uses the system memory to store graphics information which is slow. This is usually because of the large differences in speed between your system ram and your video cards built in memory. It would also mean that your video card has to waste extra clock cycles fetching data over the PCI-E bus, through the northbridge to the system memory, which will kill your framerate. This is why discrete graphics chips come with dedicated memory.

There's no effective way to change your video card's amount of memory.

[lauris47]

Ok, you sound like master. But if still someone know how, let my know, I won't loose anything by just testing..

Originally Posted by Laykun

Video card memory is built onto the board that your video card uses. What you're suggesting is using shared memory which uses the system memory to store graphics information which is slow. This is usually because of the large differences in speed between your system ram and your video cards built in memory. It would also mean that your video card has to waste extra clock cycles fetching data over the PCI-E bus, through the northbridge to the system memory, which will kill your framerate. This is why discrete graphics chips come with dedicated memory.

There's no effective way to change your video card's amount of memory.

[Serial T.]

His picture proves he is using the nomemrestrict and vidmem executable arguments to launch his game as Laykun suggested. Have a proper look at the posted picture, it clearly states 856/3000 MB, meaning he only has access to 856 MB. Obviously the 3000 MB is a false number the game has been tricked into percieving.