Dual EGPU Setup

[CM]

Hi 

 

I currently have an external gtx 970 running on the akitio powered by the dell 220, Thunderbolt to macbook pro. But I'm now considering a dual setup by buying a gtx980 ti and just have one power supply and hopefully a better case to house both cards running x2 thunderbolt cables to my macbook pro.  Does anyone have any experience of doing this? Thanks

[devild]

if you have 2 thunderbolt ports on your mbp, then there shouldn't be any problem.

I can confirm that 2 akitio box are working with mbp late2013 and macpro 2013 'trashcan'.

[Tech Inferno Fan]

A 15" MBP hosts it's dual-Thunderbolt ports controller down a single x4 2.0 link.  Adding a second card would increase processing power but if both cards are working at the same time then they share the x4 2.0 bandwidth.

 

Consider offloading the GTX970 and purchasing a GTX1080. That would then give you about 23% less processing power than the GTX970+980Ti all the while having exclusive access to the x4 2.0 bandwidth within a single AKiTiO enclosure.

[CM]

thanks, @Tech Inferno Fan @devild for the information, I might just update the single card at some point, but ill need cuda cores the most for GPU rendering so I will probably go with the gtx980 ti as it seems to have the most cores for the cost.

 

[Dschijn]

2 cards would only make sense for rendering apps. Don't consider it for games. Any normal gpu calculation app will work very well with the TB2 bandwidth.