Gaming: response time and input lag
It's very improbably for you to shortlist the Eizo EV2456 if you're primarily looking for a gaming monitor: you can buy a WQHD monitor with a 144Hz refresh rate for the same price. This is a productivity workhorse and in this category response times aren't that interesting - as long as they're lower than the frequency of the panel. This means that a single transition should not take longer than 16 ms, a double transition (the one which we're showing here) should not take longer than 32 ms.
The EV2456 achieves those times nicely, even without the use of overdrive. If you do choose to activate it, you'll get quite a bit of overshoot, even on optimal settings, however it's not unbearable. Long story short: gaming is possible, however this is not a gaming monitor. An RTS of RPG game will look beautiful thanks to the very accurate colours, so this display will definitely not stop you if you want to enjoy yourself in The Witcher 3, after a day of accounting.
Response times standard
Response times maximum
Response times optimal
We measured a very low amount of input lag with our Leo Bodnar tester, in the comparison with a CRT we basically found none.