Laptop Help

Most laptop GPU's are hard wired in like a transistor. So unless you are an electrical engineer you are probably stuck with what you have.

I'm no good with upgrading stuff, but you should download Speccy so you can post all of your computer specs easily and people can see if there's a weak spot.

yup, with laptops you need to buy the best, or else your stuck with it.

ASUS has a tendency to surface mount dedicated GPUs on the motherboard, thus making them non-serviceable. There are a few exceptions like the G73, but IIRC, the socket wasn't even a standard MXM that would be able to take a different card.

Combine that with ASUS's track record on other things notebook, and I'd expect that even if they did have a system with a standard MXM slot for the video card, they'd probably have a white-list for video cards just like Lenovo does with WiFi cards.

Long story short (I know, too late. ;) ), unless your A45V-K45VM has an ExpressCard socket, which I highly doubt since even their flagship G7x series doesn't have 'em, you've got no options. (An ExpressCard socket has a PCIe x1 interface which permits EXTERNAL GPUs to be attached to notebooks, in which case you also need an external monitor.)