Advanced Micro Devices has had an on-again off-again relationship with the Fortune 500. But thanks to the turnaround efforts of its C-E-O, Lisa Su – the semiconductor company is back on the list this year. Su became A-M-D’s first woman leader in 20-14. She spoke with Fortune’s Michal (meh-HALL) Lev-Ram at the Most Powerful Women Summit in October to talk about how she tackled the transition.