05-17-2014, 07:24 PM
Filliam H. Muffman wrote:
I still haven't seen any benchmarks that show if Thunderbolt 1.2 can drive a 4K panel at 60 Hz and run storage at full speed on the same bus...
Thunderbolt 2.
Displayport 1.2.
The 10Gbps per channel limit on Thunderbolt 1 was just a nudge under the minimum (10.2Gbps) to drive a 4K display at 30Hz. A 20Gbps Thunderbolt 2 port should have plenty of bandwidth for file transfers even while driving a 4K display at 30Hz.
A 60Hz 4K signal hits 14Gbps and with 20Gbps to blow through there's still plenty of headroom for file-transfers (the equivalent of the full speed of a SATA bus) under Thunderbolt 2.
Unless you need to max out the bandwidth to a striped SSD RAID you're not gonna have much trouble with your file transfers while watching upscaled 1080p video on your shiny new 4K monitor.