MSI MPG 322UR X24 Review (Penta Tandem 4K/240Hz QD-OLED)

We use the Open Source Response Time Tool (OSRTT), developed by TechTeamGB, for our response time testing. This measures grey-to-grey response times and presents the results in a series of heatmaps, the style of which you may be familiar with from other reviews.

Initial Response Time is the time taken for the panel to transition from one colour to another, where lower values are better. We present the initial response time, so overshoot is not taken into account and is measured separately. We use a fixed RGB 5 tolerance for each transition.

Overshoot is the term given for when a monitor's transition exceeds or goes beyond its target value. So if a monitor was meant to transition from RGB 0 to RGB 55, but it hits RGB 60 before settling back down at RGB 55, that is overshoot. This is presented as RGB values in the heatmaps – i.e. how many RGB values past the intended target were measured.

Visual Response Rating is a metric designed to ‘score' a panel's visual performance, incorporating both response times and overdrive. Fast response times with little to no overshoot will score well, while slow response times or those with significant overshoot will score poorly.

In terms of response times, we only tested at 240Hz given we know that all OLED monitors are about as fast as each other when it comes to response times, and that is the case regardless of the refresh rate used.

Of course, that doesn't mean motion clarity will be the same regardless of the refresh rate – the higher you can push the refresh, the smoother things look. The jump from 120Hz to 240Hz, for instance, is quite noticeable, but you can also note there is zero ghosting at any given refresh rate target.

Other OLEDs can deliver even faster refresh rates though, including the MSI 272QP X50 which can hit 500Hz. That brings another welcome boost to motion clarity, but it is worth pointing out that it's limited to 1440p, so if you want a 4K OLED, 240Hz is as good as it gets right now… though 4K/360Hz panels are now in the works!

The 322UR X24 also offers black frame insertion, which MSI calls MPRT. This means that, with it enabled, you get broadly equivalent motion clarity at 120Hz as you would without BFI at 240Hz, and it's obviously a lot easier to drive games at 4K/120 than 4K/240. It does disable adaptive sync and brightness is capped at 152 nits in my testing, but it could be worth using depending on the games you play.

Become a Patron!