With very few exceptions, no as the video chip is hard soldered on the main system board (motherboard).
Exceptions:
You can only change a card that is already dedicated,which means it does NOT use shared memory and is NOT made by intel.
Yes, you can ONLY upgrade Nvidia an ATI cards in a laptop.
If its not soldered to the mainboard you have to get a card from the same brand and model, such as with Dell and most Toshiba laptops.
Or maybe you have a special laptop that uses a standardized interface called MXM. Almost all ACER laptops that have a model ending in G use MXM.
Alienware, HP elitebooks 15" and 17" also use MXM. there is MXM 2.1 and 3.0 which are incompatible with each other, and there are different sizes of each.
There is also a way to connect a desktop graphics card to your notebook and run it with an HDTV like a gaming system but better. Its not expensive or difficult, here is a guide:
http://www.notebookreview.com/default.asp?newsID=5846&review=how+to+upgrade+laptop+graphics+notebook
No, you do not
buy a new laptop
I'd go with ATI
Buy a new graphics card and install it.
It depends on the computer model, it would require you to disassemble the laptop swap video cards then reassemble the laptop and this would be likely damage the computer. I too have looked into this.
I had a 6680 with my old laptop and currently have a 7680 with my new one and its quite nice.
If you mean you want to use a graphic card and not your onboard graphics , then yes. But you don't touch the chip, when you install a card into the slot, and remove your onboard graphic drivers, then install your card drivers, then you will be using the card. Most cards will tell you how to install the card and when to uninstall drivers and when to install them. Almost all motherboards have a slot that can run a graphics card. Just make sure its better than your onboard or you will be wasting your time.
It is simple. You just need to take the bottom cover off the laptop to expose the area of the computer that has the PCI card slots. Just pull the current graphics card out and replace it with the new one.
just cut a slit with a marble cutter and incert the card
You must first remove your current sound card, and depending on what type of laptop you have will determine where it is located, than insert the new sound card usually with the upper label facing up. From there you just install the necessary software provided with the sound card.
You cannot upgrade the pixel shader without buying a new graphics card. Usually, this is not possible on a laptop without buying a completely new one.
You just need to insert the card in to the AGP slot on your motherboard. After that you need to install the new drivers from CD or the internet.