Running the two cards in SLI mode is a bit of a mixed bag. Not every application supports higher performance with SLI mode and this can be seen in the NFS:Carbon scores. I had a bit of an issue with Quake 4 pausing causing inconsistent scores where it should have a performance increase. When SLI is enabled and works with an application (3Dmark, Oblivion, Dark Messiah Might and Magic etc.) it works well, with clearly defined performance increases over a single 8600GTS card. NVIDIA set the standard with their 6600GT and 7600GT cards, and by the measure of performance in the mid-range of the new generation being higher than the previous generation’s high-end part, the 8600GTS and 8600GT fail. Today the best bet for price/performance ratio is the 8800GTS 320MB, as it is available online for $269.99 (note I have refrained from including mail-in rebates on all prices as it would make it even more competitive price range wise..



Link: GamePyre