Well, I'm impressed! Installed the 64-bit QB64 in my OptiPlex Core i7 desktop, and as the current US President would say, the improvement was "yuuuge"!
The [banned user] tests went from 10.2-10.3 seconds with the 32-bit version, to 0.27-0.33 seconds now. They all flashed by in no time.
A number crunching test I wrote (it generates prime numbers, beginning with 3, and for this purpose I limited to 100,000), went from 1.6 seconds or so to 1.05 sec.
Steve's previous speed test, which I think had more to do with memory speed(?), the one with the graphics anyway, was unchanged.
Very cool. For my work PC, I'll have to wait until qb64x64 becomes available at the qb64.org site. It blocks dropbox. Nice Christmas present, though. Thanks, Steve!