It's a decent card, but isnt really that good. If your talking about the x1400 in laptops, it's almost as good as a PCI-E x1300PRO. Since i've had many computers it's easy to compare for me, and I would say it's almost as good as a 9600XT.
In terms of gameplay, I can play games such as CSS or DoDS on high settings with a decent framerate, but I can't play games maxed out.