Can A Retina Imac Drive 2 External Thunderbolt Displays?

[RoastingPig]

I don't see anywhere on apples website about driving 2 external displays, only a small specification where it says it can drive an external 4k display. can anyone confirm it can run 2 external display without the already toasty AMD m295 catching on fire. Sarcasm obviously but thats allot of stress on a mobile gpu to push a 5k display plus 2 1440p displays simultaneously.

 

[kendrickhphoto]

I don't see anywhere on apples website about driving 2 external displays, only a small specification where it says it can drive an external 4k display. can anyone confirm it can run 2 external display without the already toasty AMD m295 catching on fire. Sarcasm obviously but thats allot of stress on a mobile gpu to push a 5k display plus 2 1440p displays simultaneously.

I will be running it with a 27" Cinema display and a Thunderbolt display and I will let you know if it catches on fire or anything.

 

[RoastingPig]

anyone ever figure this out?

 

[Chuck Rodent]

According to the Apple support website:

FAQ 18
If you connect a 60Hz multi-stream transport (MST) 4K display to an iMac (Retina 5K, 27-inch, Late 2014) computer, only one additional Thunderbolt display is supported.

Otherwise it is listed as supporting 2 TBD.

http://support.apple.com/en-ca/HT5219

 

[kendrickhphoto]

anyone ever figure this out?

Yes, mine is powering my Thunderbolt Display and 27" Cinema Display just fine.

 

[dragon529]

Yes, mine is powering my Thunderbolt Display and 27" Cinema Display just fine.

Image

What TB display are you running?

 

[Wiggle]

What TB display are you running?

There's more than one TB display?

 

[kendrickhphoto]

What TB display are you running?

I'm running this Thunderbolt Display and this Cinema Display

 

[tillsbury]

The answer is yes. The only thing it can't do is run two external 4k displays.

 

[RoastingPig]

anyone seeing performance issues with this setup? how would editing a 1080p file on one thunderbolt display in full screen final cut x and on the other display watching a 1080p youtube video and on the retina browsing the web all fair when doing simultaneously?

 

[edjrwinnt]

I had a 28" 4k Dell and a Asus 1920 x 1200 connected via thunderbolt and it worked okay, but mission control was slow. I then connected the Asus via a usb3 video adapter and things seemed a little faster. Now 10.10.2 beta 4 seems even faster, and at some point I will try using both Thunderbolt ports with the 2 lcd's again.