VAX 780 on eBay

Jon Elson elson at
Mon Jan 3 11:01:21 CST 2022

On 1/2/22 7:11 PM, Grant Taylor via cctalk wrote:
>> but the 780 was really slow. I have a Microvax II here 
>> that would equal it CPU speed-wise, and the running of 
>> the main memory on the SBI was cool for the 782 option 
>> but was pretty slow.
> Can I ask for a rough translation in to comparative VAX 
> Units of Performance (VUPs)?  I /think/ that the VAX 
> 11/780 was 1 VUP.

By definition, the /780 was 1.0 VUP.  The KA630 (MicroVAX 
II) was supposed to be 0.8 VUP.  It beat the /780 on 
floating point, supposedly.


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