As of now, the fastest external graphics card connection is the express card (google vidock) or open the laptop case and connector the mini pcie inside to a pcie x16 converter, then use put a desktop gpu in it with an external desktop psu attached. For vidock, your laptop does not have express card so you cannot use it. Even if you have express card, the performance will still be very limited because of the low bandwidth of the express card. For the adapter, it is messy and also the bandwidth is restricted as the mini pcie is running at pcie x1 speed. The time and effort to get all of the parts and the cost is not worth it.
You are going to have to use usb graphics adapter which will be so slow, I don't think you want to use them.