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Blue Screen Again
Posts: 1
Registered: ‎12-28-2017
Location: CZ
Views: 1,037
Message 1 of 1

Thinkpad T440 - support of WQHD resolution (2560 x 1440) for external display



I have Thinkpad T440 (i5-4300U, Intel HD Graphics 4400). I am considering buying a LCD display with WQHD resolution (2560 x 1440) and I am wondering wheather it will work with T440. Important thing, I want to work it with 60 Hz refresh ratio.


According to the specification [1] the resolution is supported: "3840x2160@30Hz (DisplayPort via Mini DisplayPort cable on integrated models)", but the refresh ratio is pretty low - 30Hz.


The specification [2] for i5-4300U, Intel HD Graphics 4400 says something different: "Max Resolution (DP)‡ 3200x2000@60Hz". So the refresh ration is higher than what T440 specification states - 60Hz.


Also quick reference quide to Intel processors [3] confirms the resolution and the refresh ratio: "U-Processors: 3200 x 2000 @ 60 Hz, 3840 x 2160 @ 30 Hz".


Is 2560 x 1440 @ 60 Hz supported on T440?


I hope that ThinkPad T440 specification is not accurate enough and that limit to 30 Hz refresh ratio only applies for 4k resolution (3840 x 2160).





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