Unlike racing chairs, a good monitor for racing games doesn’t need to look flashy or have a variety of eye-catching colours. You should look for entirely different things here. We already mentioned the curve, and we have an explanation of that if you’re curious. A curved display offers a much closer match to the depth-based nature of human eyesight than flat screens. While not always night and day in difference, for sim racing the added accuracy in depth perception usually proves very enjoyable and beneficial.
We won’t get into terminology in depth here, but a 1900R curve is ideal, as shown by the BenQ EX3415R. Aggressive 1000R or even 1500R curves may prove a bit much for a lot of users, but 1900R is just right. This is the perfect curve for a 21:9 ultrawide 3440 x 1440 screen. And 3440 x 1440 is a great resolution for detailed sim racers, because the 4 million plus pixel count doesn’t overburden even mid-range GPUs. Conversely, if you opt for a massive 32:9 ultrawide monitor you’ll likely need to power a 5120 x 1440, 5120 x 1600, or even 5120 x 2160 resolution. Those call for exponentially beefier graphics cards, thus complicating matters. An ultrawide 3440 x 1440, 21:9 monitor is for sure a sweet spot. Framerate underscores this, as you likely want to go over 60Hz. Good gaming monitors these days do 144Hz, and that’s perfectly reasonable for many GPUs at 3440 x 1440. However, 144Hz 5120 x 1600 would need a monster GPU, something that’s not easy to come by in many situations.
In addition to high refresh rate of 144Hz or more, you need fast response and low latency. Choose monitors with 1ms MPRT (moving picture response time), or 2ms GtG (grey to grey) at most. Another feature to remember is variable refresh rate support in the form of AMD FreeSync or NVIDIA G-Sync. The two are largely interchangeable, so if a monitor has one, it’ll almost certainly also work with the other. Both prevent unsightly screen tearing due to refresh rate discrepancies between the monitor and the GPU, an artefact that can rip you out of an immersive sim racing session real fast.