VMS hardware
Categories:
- VAX workstations
- small VAXes (MicroVAX I, II, 3000, 4000)
- medium VAXes (VAX 700, VAX 6000, VAX 7000, VAX 8000)
- big VAXes (VAX 9000, VAX 10000)
- ft VAXes
- DEC ALPHAs (DEC 2000,3000,4000,7000,10000)
- AlphaStation ALPHAs
- AlphaServer ALPHAs
- AlphaStation XP/DS/ES
- AlphaServer DS/ES/GS
General note:
Note that the information about hardware is based on numerous source
and are not guaranteed to be correct. It is most likely that there
are several incorrect informations present.
Special note on benchmarks:
Meaning:
- VUPS is a geometric mean of a benchmark suite of 99
benchmarks with VAX 780 = 1.0 (only used for VAX systems)
- SPECmark89 is a geometric mean of a suite of 10 benchmarks
with VAX 780 = 1.0
- SPECint92 and SPECfp92 are geometric mean of respectively a
integer and floating point benchmark suite with VAX 780 = 1.0
- SPECint95 and SPECfp95 are geometric mean of respectively a
integer and floating point benchmark suite with SparcStation 10
(40 MHz SuperSparc) using conservative optimization = 1.0
- SPECint2000 and SPECfp2000 are geometric mean of respectively a
integer and floating point benchmark suite with Ultra 10 300 MHz
using conservative optimization = 100
Since both VUPS and SPECmark89/SPECint92/SPECfp92 is based on VAX 780, then
1.0 VUPS = 1.0 SPECmark89 = 1.0 SPECint92 = 1.0 SPECfp92 is an
obvious assumption.
Since a SparcStation 10 is rated at 50.2 SPECint92 / 60.2 SPECfp92
and 1.13 SPECmark95 / 1.38 SPECmark95 (note that those are with
aggressive optimization not conservative and therefore <> 1.0),
then an assumption would be 44.0 SPECint92 = 44.0 SPECfp92 =
1.00 SPECint95 = 1.00 SPECfp95.
Since an Ultra 10 300 MHz is rated at 12.1 SPECint95 / 12.9 SPECfp95
and 133 SPECint2000 / 126 SPECfp2000 (note that those are with
aggressive optimization not conservative and therefore <> 1.0),
then an assumption would be 10 SPECint2000 = 10 SPECfp2000 =
1 SPECint95 = 1 SPECfp95.
But do not use such primitive bencmarks as an indication for
how your application will perform. Those bencmarks are very
CPU intensive, while real world applications often also depends on
disk speed, net speed, graphics speed etc.etc..
Especially do not compare a VAX and an Alpha and conclude from this
bencmarks, that the Alpha is f.ex. 25 times faster. The CPU may be
25 times faster for doing arithmetic, but memory access is not 25 times
faster and neither is disk access.
VMS page:
Link to VMS page.
Suggestions/reports:
Please email suggestions about new topics and error reports to
Arne Vajhøj (ava@levitte.org)
Trademarks:
VMS, OpenVMS, VAX, AXP, DEC, Digital, DECUS and Encompass are trademarks of Compaq.