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Dell Alienware M18X Laptop i7 2960XM OC 40 Ghz Dual 580M SLI 16gb 1600 Mhz Ram    US $3,199.00

Alienware M18x i7 2960XM 27GHz 16GB 256GB Space Black 2GB Dual 580M SLI Laptop    US $3,199.00

Good Condition Dell XPS M1730 Gaming Laptop W SLI Nvidia    US $559.99

Appreciating Graphic Card

With a wide range of graphics cards out there, each with distinctive specification and function; it is surely a difficult choice to make.

To opt for the right graphics card, you have to have to consider the following points:

AGP or PCIe?

Decide what you need
Its essential to know beforehand what you shall be employing the laptop for? If you might have any particular wants such as, for those who work on graphics software, play 3D games or have lots of multimedia usage then obtaining a laptop having a dedicated graphics card is finest for you.

AGP is the slot exactly where the graphics card is inserted within the motherboard. It has been the common for graphics card connection for a long time.

With the introduction of PCIe slot, the days of utilizing AGP slot will soon come to an end. PCIe slot boosts a speed four instances more rapidly than AGP slot and supports multiple video cards integration (SLi or Crossfire technology). This is one thing which is impossible to achieve using the AGP slot

If you're looking to construct a gaming personal computer from scratch, it can be advisable to obtain a PCIe graphics card as it will soon take over AGP as the normal for graphics card connection. However, if what you would like is only to upgrade a brand new video card, you'll find nonetheless a whole lot of fantastic AGP graphics card around for the selection.

GDDR2 or GDDR3?

GDDR refers to the bandwidth of the graphics card memory module bandwidth. It is just not the exact same as the DDR2 computer memory RAM you install on the motherboard.

GDDR2 has been employed by graphics card manufacturers for a period of time. The major drawback for GDDR2 is its severe overheating issue. This has prompted ATI to develop the GDDR3. GDDR3 has a lower energy consumption rate plus a increased bandwidth, which enables the graphic card to final longer and run faster. Though price is extra expensive, it can be definitely a superior buy than a DDR2 graphics card.

Memory size

You might like to also understand more about How To Install Graphics Card.

is it possible to upgrade a single gtx 485m to dual gtx 485m on the same laptop?

i got a sager NP8170 laptop i7 2630QM, 8gb ram, windows 7 home edition 64 bit, gtx 485m.
is it possible to add 1 more gtx 485m to my exsisting one to make it gtx 485m SLI? if possible is it as simple as putting one more graphics card to the extra slot manually? or do i have to give it to someone to do the complicated things of upgrading? thanks.

i do not think you can do that...

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