OK, this may be a little convoluted, but I am considering adding a USB3 -> 4K video "card" to my Late 2014 Retina iMac, with 4GB RAM on the video card (Radeon G9 295X):
http://www.newegg.com/Product/Product.aspx?Item=N82E16812282022&ignorebbr=1
(or a similar type dongle)
I know the issues are having 30Hz 4K, which I can live with, and that's pretty much it for the downside. The worst I will be doing with the computer, as far as graphics go on that screen will be playing X-Plane on it. As it stands now, X-Plane is doing well on my iMac with a window that is about 8000 pixels wide, as flying a Cessna T337 isn't the same as an F-18 30 feet off the ground.
So, I have two questions:
Has anyone done this, and what are the downsides of this?
Is there something like this (a dongle with a display card in it) for the Thunderbolt 2 port that may make this moot?
On https://support.apple.com/en-us/HT202856 I'm wondering if I have two SST 4K monitors, I can just go directly from Thunderbolt to the monitors (no dongle needed) at 60Hz?
http://www.newegg.com/Product/Product.aspx?Item=N82E16812282022&ignorebbr=1
(or a similar type dongle)
I know the issues are having 30Hz 4K, which I can live with, and that's pretty much it for the downside. The worst I will be doing with the computer, as far as graphics go on that screen will be playing X-Plane on it. As it stands now, X-Plane is doing well on my iMac with a window that is about 8000 pixels wide, as flying a Cessna T337 isn't the same as an F-18 30 feet off the ground.
So, I have two questions:
Has anyone done this, and what are the downsides of this?
Is there something like this (a dongle with a display card in it) for the Thunderbolt 2 port that may make this moot?
On https://support.apple.com/en-us/HT202856 I'm wondering if I have two SST 4K monitors, I can just go directly from Thunderbolt to the monitors (no dongle needed) at 60Hz?