A very good screen. IN flawless game I have no problem after I not address the overdrive or if he did 144hz etc I leave that to the experts it fills me great personal function after having looked at information it seems that the firmware Iiyama Prolite GB2488HSU is not Iiyama Prolite GB2488HSU-B1 as displayed not very commercial on the part of the seller to pass an older model. even if the screen is I put 2 stars for the principle