We told you a few days ago about ASUS launching a 31.5-inch 4k monitor, and predicted that today’s Macs would struggle to drive it. The Verge has now confirmed this, by briefly hooking it up to a 15-inch MacBook Pro with Retina display.

Tangible lag was introduced when working in more demanding applications like Adobe’s Lightroom, while the mouse cursor also exhibited a troublingly low refresh rate …

As The Verge acknowledges, it’s not a very robust test as OS X won’t output directly at 4k resolution, but it does suggest that we will indeed need to wait for the next-generation of Haswell-powered Macs to take advantage of this kind of display. That’s the bad news.

The good news? The price, now revealed. While $3,799 is still rather eye-watering for most of us, it’s actually a pretty remarkable price-point to hit for a 4k monitor given that it’s not so long ago you couldn’t get one for less than five figures.

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