DieHard Posted December 3, 2015 Posted December 3, 2015 Couple years ago I changed out my video card to my Alienware Aurora R3, a single GeForce GT 545, to a single ASUS GeForce GTX 680 with 4GB GDDR5 memory which I still use. The 680 was $500 then and did not want to spend more money at the time. I recently looked around for another identical new 680 to achieve SLI and they do not exist or what is available costs more than that. Some used models are available to ebay. Can I mate two dissimilar models to achieve SLI or do the two units need to be identical models? Am thinking mating my GTX 680 with a newer, later model, in SLI. Doable? [sIGPIC][/sIGPIC]
Brisse Posted December 3, 2015 Posted December 3, 2015 Am thinking mating my GTX 680 with a newer, later model, in SLI. Doable? Don't. Sometimes it is possible to get two similar but slightly different cards to work with each other, such as a 670 and a 680, but the slower card will drag down the faster card and even if the frame-rate increases, it will feel like it's stuttering because every other frame will be rendered faster or slower than the other so the timing creates what is knows as micro-stuttering. Do yourself a favor and go out and buy a new card and use that as a single card, while trying to sell your old card second hand. You will thank me later. Going the SLI route is just begging for problems.
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