It's worth mentioning that 4K takes a lot of GPU horsepower to run games at with ultra settings. My 1080 was passable with the games I tried bringing in levels of performance that was just playable.

The picture quality on this monitor is incredible; 4K at 27" looks very crisp and detailed and the contrast is very good beating out any other LCD I've owned; Colors are also vibrant and the out of the box calibration looked good.

After about a week of use I noticed a stuck pixel in the lower left part of the screen that was stuck on red; Even with the high pixel density of this screen it was still very noticeable even if I moved further back from the monitor.

This monitor and the Asus "4K 144hz" one that is also out uses something called Chroma Subsampling in order to get to 4k 144hz. As a result of the lack of bandwidth in Displayport 1.4 you will only get 8bit color upto 120hz in 4k. However this is not a 10bit panel at all.

I'm very happy with this monitor I had done so much research over the asus and acer. For ￡400 difference at time of writing I opted for this one as they share the same panel. I was worried the fan noise as reported in earlier reviews would be an issue but it is not at all.

The Acer Predator X27 is one of the first monitors that supports both high, 4K resolutions and ultra fast frame rates. It has HDR with a wide color gamut, Nvidia's G-Sync to prevent screen tearing, an overclocked 144Hz rate to keep fast-paced visuals smooth, and costs a staggering $1,999.

4K, G-sync, 144Hz, and HDR..; all in one screen, OSD offers layers of customization, Ports and privacy hood are useful additions

Driving the monitor to its full potential is very expensive; Windows HDR bugs; OSD tricky to navigate

The Acer Predator X27 is one of the first G-Sync HDR displays and checks every box you could ask for.

Vivid DisplayHDR 1000 certified display with 384 backlight zones; First monitor to hit 144Hz at 4K resolution; Impeccable color accuracy; Factory...

Extremely expensive; Active cooling fan creates noise; Output occasionally turns a murky gray after waking

A couple of weeks ago you might have spotted our review of the Asus ROG Swift PG27UQ , the first 4K 144 Hz moni

Outstanding performance, including excellent HDR, elite factory SDR calibration, decent overall latency, and a high refresh rate at a very high resolution; Better performance than the Asus PG27UQ

Very expensive; Early adopter issues like active fan and chroma subsampling

There are a multitude of issues with this monitor. 1. hazy bloom around icons and the mouse cursor 2. the fan is cheaper than anything I have ever seen, and it is directly behind the mounting plate. 3. the menu system is horrible.

A 144Hz refresh rate, 4K resolution and proper HDR thanks to a clever 384-zone backlight, mark the Acer Predator X27 out as one of the most feature-rich and capable gaming monitors you can buy.

Fantastic image quality; Great gaming performance; Stunning HDR

Very expensive; Still only a 27-inch display; 4K resolution too demanding

The Asus ROG Swift PG27UQ is very similar in its specs to the Predator X27, it being a 27-inch monitor with 4K UHD, Nvidia G-Sync, a 144Hz maximum refresh rate, and a 1,000-nit rated peak brightness. We look forward to reviewing it soon.

4K UHD resolution; Supports HDR content; Very high rated and tested brightness; Excellent contrast ratio for an IPS monitor; Glare-reducing hood; Stylish, ergonomic mount provides height, tilt, and swivel control

Stratospheric pricing; Requires high-performance hardware to get the most out of it

The Acer Predator X27 provides fantastic image quality and a great 144Hz gaming experience, not to mention a stylish design, a nice stand and a few useful extras like a USB hub. Of course it's far from cheap, but at the time of writing it retails for around £100 less than the Asus PG27UQ - and it's...

Sumptuous HDR colour; Fantastic contrast; Decent gaming performance

Incredibly expensive; 4K feels cramped on a 27in monitor; Fan noise