A new leak has revealed details of both the Snapdragon 898 and MediaTek's upcoming Dimensity 2000. Both chips are similar with a few notable differences, but those difference hint at the MediaTek chipset having a performance edge over Qualcomm's offering.
https://www.notebookcheck.net/Leaked-MediaTek-Dimensity-2000-and-Snapdragon-898-details-strongly-indicate-MediaTek-performance-superiority.574111.0.html