can a T430s drive a 4k / UHD external monitor?

[plympton]

I have an X220, and thinking about getting a 14" machine. My wife's T420s is a nice compromise between size, weight, and screen size.

The X220 can't drive a 4k display at more than 30hz because of the integrated graphics and displayport 1.1 (?). I assume the T420s is in the same boat as the X220. I don't have a 4k display yet, but hankering for one in this year's upgrade cycle.

Can the T430s drive a 4k display at 60hz? I don't care about games (have a desktop for that I don't use ), but for coding work mostly.

I'm liking a T430s since it has a decent enough keyboard, can take 2 8gb dimms, and can be upgraded to an IPS display now .

The T450s is petty comparable to an upgrade T430s, at twice the price, and probably twice the battery life, with equal processing power.

Anyone disagree or have thoughts?

[aau007]

T430s with discrete graphics has a max of 2560x1600 external resolution via the DP output, on board or via docks.

[brchan]

Maybe. Some people have had success running 4k at 30hz instead of 60hz, by creating a custom resolution in the nvidia control panel. However, watching video or fast motion pictures may appear laggy.