Is XTU stress test more demanding than all gaming applications?

So I've been stress testing my new i7 8700k gpu. I have it very modestly overclocked to 4.8ghz 1.27v. I've stress tested it with prime95 and it does fail within a minute or so (one of the threads anyway). I've also stress tested using XTU for 1hour (both cpu and memory) and I had no issues.

Now to note: I am not looking for a 100% rock solid totally stable system. So I don't mind the Prime95 fail. I am looking for a system that will never crash on me based on my day-to-day usage. The most demanding thing I do on my PC is game for 8-10 hours a day depending on the game. Other than that it's just web surfing and streaming/downloading videos (none of which are cpu intensive).

Seeing as my CPU fails Prime95 but passes XTU ok, do you think my system is stable enough to never crash during normal gaming (and my general usage patterns)?

Thanks alot!