Increasing the Graphic Ram of 5732ZG

Dear all,

Does anyone know how to increase the Graphic Ram of 5732ZG? It has an ATI vga with 512 MB Ram as default. I noticed that in the bios setting, the ram and vga ram are shown, but are not changeable.

Please advise.

Thanks,
artmansoft

 

You can't change it. ATI Radeon HD 4570 has its own dedicated RAM and can use system memory when it needs to (dynamically allocated). There’s no way to alter it and there's no need either- even if you had twice the dedicated video RAM your card wouldn’t be any faster as the amount of VRAM is not a limiting factor in such a card.

 

as said, as it has dedicated RAM you cant increase it

 

Dear downloads,

You said the required video ram is dynamically allocated. I want to know how much it will be increased at maximum? I have heard about 1.7 GB. Is it right?

Thanks

 

Your GPU has its own RAM memory apart from your system RAM memory (that means Dedicated GPU)...

And when GPU runs out of its own memory, it dynamically (as much as needed) takes some of system memory to supply itself with enough memory (up to the maximum amount marked buy the manufacturer)...

But as far as my experience shows, the amount of 512MB of dedicated memory on GPU is very enough...

And while playing the amount of memory does not effect GPU performance as GPU memory speed does, at least if we are considering GPUs with 512MB of dedicated RAM memory...

Hope it was clear enough...

Cheers

 

Arminator explained it perfectly. I'm not sure if it's 1.7GB or less because I can't find it in specs on AMD website but it really doesn't matter.
Your card wouldn't be able to provide even half-decent framerates if it had to deal with 1.7GB of textures at once. Even much faster cards (let's say HD5650 with 400 streams as opposed to HD4570 with 80 streams) have only 1GB of dedicated video RAM. The amount of video RAM is nor a limiting factor in your case, what's more it's the speed (bandwidth) of video RAM that really matters not the amount of it.

 

Apart from that, if you had even the highest end of cards, say a GTX580 and it needed more ram than it had, the impact in performance of dipping into system memory would instantly kill performance. No matter the chip.

 

The ATI HD4570 has only a 64bit bus to use the video ram, which means it can effectively use about 256mb. Even though it has way more than that, it'll never be able to use it.

In comparison, a ATI HD5650 has a 128 bit bus, it can take 512mb's effectively.

Actually, only the nVidia GeForce GTX480M has a 256 bit bus, for about 1024MB of videoram.

Desktop graphics cards have a lot bigger bus size, and can naturally use more videoram because of it.

 

Thats a rule of thumb, there are exceptions.

There is no real limitation of the bus width affecting how much ram a chip can "use".

 

What Meaker said - GPU manufacturers may build cores with narrow buses, but they also specify faster RAM speeds to make up for it, like DDR3 or GDDR5.