Mac Users:

I've completed some performance testing of Virtual PC 6. See the
enclosed PDF.

W2K seemed to fair best, but at 384MB. I presume 512 was taking too
much RAM away from the host Mac. Why did I include win98? I was looking
for the best way to run LSM Viewer (proprietary PC Zeiss image viewer)
on a Mac. As you can see, 2D graphics faired best on win98, but the
Disk Read faired way better on W2K.

Here are some details:

The Test Mac: 733MHz, 768MB RAM, 128MB VRAM, no apps running. Default
services left running.

All Virtual PC's: seem to have run at ~530MHz. (test RAM was set at
256, 384, and 512MB). I tried to do a basic install excluding most
unnecessary apps without spending too much time on it. All updates via
the web were done, and all networked to OMRF.

Performance was using Performance Test V4.0 (free download from CNET).
It used 9 math tests, 3 2D graphics test, 4 memory tests, 3 disk test,
1 cd test, 3 MMX tests. The PDF shows the summary (I have the details
if you want them). I made the graph.