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Following the initial release of the M1730, the option to have dual 8800M GTX graphics cards in SLI was made available. This is said to have a 174% power increase (as quoted by Dell) over the dual 8700M GTs in SLI which were previously the highest available option.[13] More recently an option to have dual 9800M GT and 9800M GTX (Though this graphics card differs from the 8800M GTX that the 9800M GT/9800M GTX has a PhysX chip in it) graphics cards in SLI has been added to the line.
The 9800M GTX SLI is currently the highest supported graphics card with 1GB GDDR3 VRAM for the M1730, as opposed to the 9800M GT SLI and 8800M GTX SLI only with 512MB of available Video Memory and slightly higher amount of stream processors. Thus, performs slightly better than the 9800M GT and 8800M GTX cards. The availability of the 9800M GTX SLI is rare, and may only be purchased in limited Dell direct outlets and on eBay. And in most cases, they are either out of stock, not on sale any longer or selling the previous 9800M GT and 8800M GTX graphics cards.