Just retired my 10 yr old HP ZR30w for a flash new LG 34KG950F. Going from 2560 x 1600 to 3440 x 1440 has stretched my GTX1080 ability I'm still super happy with it. The screen clarity, brightness and colour that pop right off the screen It's a massive leap in technology. HDR 400 does nothing which I was expecting and if I'm being honest I haven't noticed any real difference between my old 60hz and this 144hz.