vinlafor :
I don't understand, I have a A8-4555m and the graphic card is the 7600G and it says it has 512 MB DDR3 dedicated. The catalyst software says so, Windows says so also. But everywhere on the web it says it's a sharded memory gpu. It's weird ...
It's the 7600
G APU graphics. And, you could likely raise this to 1GB (or, more) from within your BIOS, or with an AMD utility. If you look around, you might also find some over-clocking tools, though, with mobile you must be careful.
If your graphics were designated Radeon 7600
m Mobility that would be discreet.
THOUGH to further confuse you ... AMD also offers a Radeon 7600
G2 which is the dual-graphics combination of the G plus the m.
You will be tested later