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Neither does the GTX750 Ti. However, if you search youtube for 750Ti SLI, you'll find videos where people have used this program to enable SLI with them. Anyway, i've confirmed that 2 1060s do work. So, yes, it will work. The PCIE bus will be used instead of the bridge connection. That might impact performance a bit in certain situations but it has been done and will work.and 2 1060 ? they have no sli bridge port
Has anyone gotten 3 way 1060s to work in any benchmarks? How about 4 way
It should work. Just as i said above there are videos on youtube where people have gotten 750Ti SLI working and those cards don't have the bridge connector either. Anyway, there's at least one video where someone did it with 3 750 TI cards and if I recall he did get a performance gain. So, it should work. However, it should be note that 3 and 4 way SLI doesn't always scale very well anyway and the fact that we're using the PCIE bus more might impact that as well. I suspect that it will work and in some situations you see a performance benefit but I wouldn't expect it to scale perfectly. Also, you probably need to be mind full of PCIE bus bandwidth and make sure the cards are in a configuration where they each get the maximum PCIE bandwidth available. That is try to find a configuration where all of the card get full 16x bandwidth if possible or at least 8x. I wouldn't recommend putting one or some of the card in an x4 slot because in this situation your going to be putting more data on the bus. Anyway, if you've got the money to burn, why not go for it and give us your results.
Also if your going 3 or 4 way SLI, a dedicated phsyx card might make sense. The physx card could probably work well in a 4x or perhaps even 1x slot as the operations it will be performing are more compute bound. Something like a 750 or 750Ti makes a good dedicated physx card.