How fast are new computer systems with chess!

[Dirt]

As an aside, it is worth mentioning the OS is highly relevant. I did 3 trial runs in XP 32-bit SP3, and three in Vista 64 SP1, and XP was consistently faster in all trial runs.

This just means something is wrong with what was tested. vista-64 will always be faster than XP32, because vista-64 will have 8 more registers. _if_ the application is compiled for 64 bit architectures. Otherwise you are just incurring extra memory address translation overhead (more memory accesses to convert virtual to real on a 64 bit box than on a 32 bit box).

I'm don't know anything about Vista vs. XP, but for all the versions of Toga that I've seen this tested the 32 bit version is faster than the 64 bit version when both are running on the 64 bit version of XP. I'm not certain if this is related to what's being discussed here or not.