[Info-vax] Why it is a good idea that OpenVMS isn't on x86-64 just yet

[Hans Vlems]

John, what on earth did you do wrong to deserve that???
The TU58 was probably cheap, certainly less expensive than the RX02 on the 11/780 along with its LSI-11.
The 11/750 had to be slower than the 11/780 because DEC had announced an entry level VAX. The gate array technology was rather new and I think engineering was pleasantly surprised with the end result. Marketing must have felt a different emotion...
The 11/750 cpu ran slower than the 11/780. At 0.6 VUPS it was twice as fast as the 11/730. Its only advantage was its small size, roughly a pdp 11/40 cabinet, a lot smaller than the 12/750 and no a/c required.
Two TU58 drives didn't really help either.