Approximate total memory for display device isnt what it should be

[desasteraang]

So i recently me and my friend purchased new laptop which is the same.it is acer aspire 4752g.... but when i checked dxdiag,our approx.total memory of our display driver is not the same.My friend have 1600++ of total memory while i only have 800 of total memory but we have the same specs.

we have two graphics card which is intel hd graphics and nvidia gt520m in the laptop.
can somebody help me with my problems?
Sorry for may bad english because it's not my first language

 

[pbcopter]

Are you sure that they are identical?
Are the part numbers exactly the same?
They offer a model with GT540m as well.

 

[Layback Bear]

Use this little program to really know what is in the computer.
FileHippo.com - Download Free Software

 

[desasteraang]

Are you sure that they are identical?
Are the part numbers exactly the same?
They offer a model with GT540m as well.

Yeah, I'm pretty sure that the specs are identical and i checked more than twice.

 

[desasteraang]

Use this little program to really know what is in the computer.
FileHippo.com - Download Free Software

here are the specs on my computer...

 

[Layback Bear]

Well you got Speccy working. Looking at GPU under sub vendor ID Illeagal vendor (FFFF).
I don't know for sure what that is all about.