Multiple tests were run with the AW2521H with PC. Each time the game was restarted to allow for any changes to refresh rate to occur.
62ms at the top quarter for PC SF6 AW2521H with 60hz setting.
62ms at the bottom quarter for PC SF6 AW2521H with 60hz setting.
59.5ms at the top quarter for PC SF6 AW2521H with 120hz setting.
62.5ms at the bottom quarter for PC SF6 AW2521H with 120hz setting.
58.8 ms at the bottom quarter for PC SF6 AW2521H with 240hz setting.
60ms at the bottom quarter for PC SF6 AW2521H with 240hz setting.
57.8ms at the top quarter for PC SF6 AW2521H with 360hz setting.
59.8ms at the bottom quarter for PC SF6 AW2521H with 360hz setting.
Now, if we were to lay these values out, it would look something like this. Let's ignore the 60hz results, as by the look they may well be affected by lack of VRR.
Again, allowing for about +-1ms, it would appear that there is approximately 1ms gained for each step further up the frame rate ladder.
Also if you look at the bottom image (which shows where we have set the threshold for change in image) it is a lot higher than in the previous tests. This should provide a more balanced comparison between the OLED and LCD monitors.