jqj@GVAX.CS.CORNELL.EDU.UUCP (05/11/86)
In article <8605051509.AA09244@CHARON> meltsner@ATHENA.MIT.EDU writes: >... I've seen X on the QDSS (II/GPX display) and it is fast! >Numbers I got at a DEC road show indicate the GPX can be 2x the >speed of a Sun 3, even under X. DEC has made the same claim to us. The traditional (originally SUN) bitmap-access demos do seem to run very fast on the GPX. Does anyone have concrete performance data comparing the GPX with the SUN-3/160C for graphics (especially color) operations? I would be particularly interested in data including software overhead at higher levels than raw bitmap access, e.g. GKS polygon fill. It is clear that the GPX will win for 2-d bitmap rotation (SUN doesn't support it in hardware unless you buy their coprocessor). I woulg guess that the SUN would win big for cpu-intensive graphics algorithms; does anyone have a hidden-surface-elimination benchmark or ray casting or something?