Performance test 32 bit vs 64 bit

[red100]

I have 2 PC's. One is a 32 bit PC running Windows XP 32 bit OS and the other is a 64 bit PC running Windows XP 64 bit OS. I want to buy the new Performance test 7.0 build 1013 and I have two questions.

1. Do I have to buy both of the 32 bit and 64 bit versions to test both of these PC's?

2. If the answer to question 1 is that the 64 bit version will also successfully test a 32 bit system, will it produce the same results for a 32 bit system as the 32 bit version would?

[passmark]

The same license key works in 32bit and 64bit. So you don't need to purchase the software twice to use 32bit & 64bit.

You can not however run the 64bit software on a 32bit machine.

The 64bit release will produce slightly higher results when run on a 64bit O/S

See also this FAQ,
Q. How many licenses will I need if I purchase PerformanceTest? (http://www.passmark.com/support/performancetest/license_keys.htm#How_Many_Keys_Will_I_Need)

And this old post.
Comparing 64bit and 32bit CPU benchmark results (http://www.passmark.com/forum/showthread.php?t=261)