Before and after 15.2 cpu and gpu scores. Seems promising.. : r/iPhoneXR
IC Repair BGA Rework Reballing Stencil Template for iphone XS/XS MAX/XR--A12 CPU | eBay
Single Sim Version For iPhone XR 64GB iCloud Locked Motherboard, the ID Blocked, after Change CPU Caseband, the Board Working|Mobile Phone Flex Cables| - AliExpress
iPhone XR Teardown - iFixit
Qianli 2D CPU A12 iBlack Stencil for Apple iPhone XS XR XS Max Micro Soldering | eBay
iPhone 11 vs. iPhone XR: Which is the best iPhone? - CNET
Benchmarks confirm iPhone XR brings iPhone XS-like speed but with a longer battery life