Machine? Pentium 4, 2.4 GHz, 1 GB RAM. Graphics card ... I forget the spec off hand ... purchased just over a year ago. Suitable for graphics but nothing over the top.

How fast? ... Garment has 18515 polygons ... was running a 30 frame simulation (no drape) ... let me run it again ... 4 min 30 sec. About what I would expect.

p.s. here is the results of a test on the P4 boy.