256MB or 512MB GPU Query

[ipkonfig]

I recently ordered for a Dell Studio 1555, which comes with 256MB GPU. The GPU memory can be upgraded to 512MB, so i chose it while customizing my product.

It has already been shipped and i am waiting for the product.

Today i come to see in some forums that there wont be considerable improvement even if the GPU memory is upgraded to 512MB. Why? Because the GPU in question utilizes a 64-bit bus memory bandwidth.

The GPU i am speaking about is the ATI Mobility Radeon HD 4570

http/www.notebookcheck.net/AMD-ATI-Mobility-Radeon-HD-4570.13885.0.html

Please enlighten me..

Thanks

 

[Maziar]

The extra memory will help u in some games,if u can go for the 512MB version