You see it in RTS/strategy. Starcraft was the game I noticed it on. With RTS, you have to quickly pan the screen back and forth. It's a doozy.
If it's mostly showing up in RTS, the effect is likely PWM multi-image rather than blur. The 7500 is no better than the 6x00 in that regard as seen on rtings motion pic, both illuminate at 120hz with 60hz image.