Yeah artifacts are not too much of a bother in terms of being able to enjoy the beta it's 8-12 ping now and then after a little while and it will even continue through "less intensive" scenes such as the Kill Cam in the subway. So it's doesn't make sense like your drops e.g. with much smoke on screen. When not lagging can get 32-45 outside Ultra 4x AA. I have been trying to monitor my system and nothing is jumping out. Only 4GB RAM but pretty certain not using more than 85% max. Yeah I will turn try turning down the graphics.
“i dont care what consoles have they dont have mouse and keyboard” -crazyeyesreaper