in limited space you can install special components. you can use graphics card to upgrade your system for better performance.
In most cases, it is not. Most laptops use "on-board" graphics chip sets, meaning they're a part of the motherboard.
Yes you can - this applies to Desktop computers however - laptops usually use an on-board graphics card - the manufacturer will usually offer an upgrade service
You cannot change your laptops graphic card.
Sorry, but no. Most laptops you can't change the graphics card. The same goes for this laptop. The graphics card is soldered to the motherboard, there is no way of improving it.
No, the graphics chipset on nearly all laptops is on the motherborad and laptops do not not have expansion slots. Desktops often have "on-board" graphis as well, but they have expansion slots so you can disable the on-board graphics and add a video card to one of the expansion slots to upgrade the graphics.
No, you must buy an NVIDIA GeForce 8400gs card.
Everywhere. Ebay, Alibaba.com, notebookreview.com forums. You can also order direct from Dell/alienware. Graphics cards for laptops are not standardized, most laptops cannot be upgraded or even have graphics cards or a slot to install one. If they do you still have to make sure it will work depending on a ton of factors, best to check if its been done before with a similar card or laptop.
You cannot use an ATI Radeon HD 3850 because it is a desktop graphics card. They do, however, have a mobile version of the same card (made for laptops) called the ATI Mobility Radeon HD 3850, which you can use.
Your graphics card helps you see the information you are putting in your computer. Your graphics card also helps you watch videos online.
A Lenovo ultrabay is an expandable slot on Lenovo y400 and 500 laptops. From what I know it is a user accessible pcie 2.x slot. The limits of the ultrabay are mainly that it can only use the cards that Lenovo releases for its use, and when using an nvidia graphics card in SLI only one graphics card will be used when on battery.
More thann 3 quarter laptops cannot have there graphics card changed saddly. However, there are people out there who has a kit which allows you to hook a graphics card to a device and the device to go into your laptop. I would not recommend doing so. Laptops have the graphics chips soldered directly onto the motherboard, to save space. Unfortunately, during fault finding, reference is still made about your 'graphics card', assuming the system is a desk top. Repairs to a laptop graphics system, involves re-flowing the solder on the motherboard. Something which requires expensive equipment beyond the average repair shop.
There are many types and brands of laptops that can use any kind of Nvidia graphics cards. Some of the brands of laptops with Nvidia are Dell, Asus and Lenovo.