They've shaved 1280 CUDA cores off of it and fitted it with slower memory to justify the price cut. That means better yields, lower production costs and more money in Nvidia's coffers. On the AIB side you'll likely see cheaper coolers than found on a 4080 (unless you want to pay a large premium for a Strix or something). A lot of the 4070 Ti coolers have already been downcosted over time, since they were originally designed when it had x80-tier status. The MSI "Slim" model that replaced the original Gaming X, for example, is over 500g lighter, notably smaller and has less fancy RGB lighting.