Gray vertical bars when launching a game?

Question

Iron

The crux of the matter is this. During this period of time, when you start any games, gray vertical bars may appear. When launching PS CC, Adobe Illustrator CC, etc. artifact is not observed. These stripes do not always appear, and are usually observed only when starting games.
Video card ASUS R9 280X, idle temperature 40, if you play GTA 5 tighter, temperature 65-70. I changed the thermostat a month ago, everything is in order with the temperature.

Answer 1

the temperature is too big, in general, this indicates that there is a physical breakdown, the card can work in this form for a long time, but it will die anyway