The M suffix on the driver number indicates "mobile",
ie.they're specially designed for use in laptops, etc..
I'd be inclined to get the driver updates direct from the ASUS support site,
as laptop manufacturers often run specific drivers for their products: ASUSTeK Computer Inc. -Support- Search
looks like you've got the ASUS X44Hr or X44Hy model,
as the standard version X44H has Intel onboard graphics..