Colin on 15 Sep, 2017 03:01 PM
I apologize for the delayed response. As John said, there is no way to derive the 64-bit result from the 32-bit result or vice versa. Anecdotally, you can likely expect the 64-bit score to be higher, but it may be higher by only 5% or by much more.
One way to find comparable results for your device would be to search for your device's details in the Geekbench Browser, with the search term architecture:x86_64 or architecture:x86_32 to filter results based on the type of benchmark run.