haha run 20 on 1 PC. It shows you haven't played the game. No GPU as of today will load 20 without some serious FPS issues. My GPU is above average radeon 7850 and at the lowest possible settings I was around 40% GPU Load with max settings 85-95%. No GPU is gonna load 20.
From what I remeber when I looked at the GW2 min and req settings, they were almost the same as D3. Could be wrong tho, gotta check again
and ofc 1+ for GW2 bot xD