Way back when, Nvidia used to use the full word ‘Titanium’ for their special sauce cards. Then they started abbreviating their naming on their ’Titanium’ cards to ‘Ti’. Which is the atomic symbol for ‘Titanium’ on the periodic table. So their cards actually still to this day retain the full ‘Titanium’ name, just abbreviated. Calling it the “Tee Eye” isn’t wrong per say. But it is also no more right than calling it the “Tie”.