It's been nearly eight months since NVIDIA unveiled G-Sync, a new technology for game monitors that reduces lag, stuttering and screen tearing. In that time, none of these displays has been widely available, though we have been treated to an in-person demo or two. Finally, though, Acer is on the verge of releasing a G-Sync monitor, and it appears to be the first with 4K resolution, to boot. The XB280HK (pictured above) is a 28-inch display with a 3,840 x 2,160 TN panel -- a big improvement over the Philips 1080p model we saw back at CES. Separately, ASUS just announced the ROG Swift PG278Q, here at Computex; that's a 27-inch G-Sync monitor with 2,560 x 1,440 resolution. See? They don't all have to be capped at 1,920 x 1,080.