A:Answer Hi Nicky - Thanks for your interest in GE! The following link provides a complete comparison between models JS760SLSS (True European Convection, 12"/9" 3000W Right Front Burner, Self-clean and Steam Clean option, Fast Preheat, 8-Pass Broil Element, 3 Oven Racks), JS660SLSS (12"/9" 3000W Right Front Burner) and JS645SLSS (No Warming Zone): https://www.bestbuy.com/site/compare?skus=5979301,5979303,6113224&url=%2Fsite%2Fsearchpage.jsp%3Fst%3Dge%2B30%2522%2BSlide-In%2BElectric%2BRange%2Bstainless%2B%26_dyncharset%3DUTF-8%26_dynSessConf%3D%26id%3Dpcat17071%26type%3Dpage%26sc%3DGlobal%26cp%3D1%26nrp%3D%26sp%3D%26qp%3D%26list%3Dn%26af%3Dtrue%26iht%3Dy%26usc%3DAll%2BCategories%26ks%3D960%26keys%3Dkeys - Keep in touch at GEAppliances.com. Sue