It does if its lies and from that graph it looks like a site trying to make 1 card look much better than the other which in my opinion pretty much makes them even more hard to believe.
But nowhere on the graph do they lie, it's not from zero so unless you’re completely illiterate there’s no way you can think the bar size alone represents the performance difference.
, defo going to buy the GT now 
, will see the graph for what it is and will see that axis does not start from 0.