2070 power usage

hi i recently built a new pc and i thought everything was fine but ive started getting issues wth the GPU, specifically its artifacting. ive looked up multiple forum posts and some epopel say 550w is enough some say it isnt, when i heaven benchmark i dont see any problems, my cpu isnt...

Hey guys need some help i have a basic single 120mm sized radiator liquid cooling block for my cpu. i have a i7-7700K and 2 ssds 2HDDs looking into getting an Nvme ssd and i want a gtx 2070. i need help guys i only have a 500w coolermaster power supply. Do you guys know if that will really be...