The GPU (short for Graphics Processing Unit) in novel computers is the heart of all graphics processing functions. Whatever you stare on the cover upright from window movement, transparency, and other visual effects seen in Windows 7, down to high-end 3D graphics seen in novel PC games--all of it is rendered by the GPU.
Although the graphic card encourage the same purpose in desktops as well as laptops, there is quite a bit of inequity between the desktop and laptop varieties, and they are not interchangeable. They are built in completely different formats--laptop graphics cards are built to fit into tight spaces and are therefore downgraded both in size, modern consumption and performance.
Some mobile GPUs are known as integrated graphics cards IGPs (Integrated Graphics Processors) and are soldered onto the motherboard. Most of them arrive from Intel, but there are also some integrated varieties from AMD/ATI and Nvidia.
Whereas desktops have PCI-E expansion slots, allowing you to insert almost any add-on video card to upgrade when required, laptops do not have these slots. Some economy-class desktops have integrated video cards, but also an option of adding a highly splendid gaming graphics card. With a laptop, on the other hand, you are shapely worthy stuck with the card that it came with.
Currently, there are 3 titanic GPU manufacturers - NVIDIA, ATI and Intel. In most cheap laptops, you derive integrated graphics from Intel by default--especially if it is a diminutive model like a netbook. Let us have a brief peek at all of these three manufacturers:
Intel does not produce any dedicated video cards but concentrates entirely on designing graphically used but power-efficient integrated graphics. The mobile Core i7/i5/i3 platform offers improved graphics, but they are serene not anywhere finish to dedicated cards in terms of performance.
ATI is a titanic name in graphics, but it is not a separate honest entity anymore. ATI was acquired by AMD few years ago, but the ATI stamp is unruffled eminent in the market, so AMD have opted to support the imprint for their graphics division. ATI cards range all the draw from basic, integrated GPUs to remarkable and dedicated gaming video cards.
NVIDIA is the other tremendous player in the dedicated graphics industry. They have abandoned their motherboard chipset venture to concentrate on designing graphic cards and related products. ATI has been their biggest rival for several years, and continues to be their biggest competitor after being taken over by AMD.
Seeing as AMD and NVIDIA are both design ahead of Intel in the world of performance video cards, let us compare the two. Technically speaking, each video card model is unique; AMD as well as NVIDIA have manufactured countless top quality discrete video cards, and the choice entirely depends on your needs and your wallet.
After deciding on budget and basic specifications, you should primarily contemplate for video cards from AMD or NVIDIA if you are planning on doing any do of gaming on your laptop. At point to, it is a very narrow hurry between the two, and if you are looking at top tier cards, ATI's Mobility Radeon HD 5800 series and Nvidia's GTX series offer cards that are neck and neck. It is unlikely that you should be disappointed with either.
In a Nutshell: You cannot change the video card on a laptop (well, technically it is sometimes possible, but not without worthy know-how) . Therefore you need to know what it is you are buying if you idea on gaming with it. After deciding on a budget, do determined to read some reviews of the laptops you are involved in and execute a price of the video card benchmarks.
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