When tried on different browser benchmarks like JetStream 2 and Octane 2.0, the 64-bit version (Chrome 85) performed better when compared to its 32-bit counterpart. This means that Chrome 85 had received several enhancements giving it a more solid performance compared to its 32-bit counterpart. This new version of the app will fix a number of performance and security issues that had plagued previous versions.

The Chrome 83, which works best with the 32-bit version, was first launched about two months ago in May. It offered updated privacy controls and also brought interface changes in Android, macOS, Windows, Linux and iOS platforms. The new 64-bit app for Android 10 devices is expected to launch in August, though Google has not come out to make any official announcements concerning the exact time-frame we would see this new browser app. References

Chrome For Android Expected To Get Performance Boost With 64 Bit v85   MobilityArena - 75