Arnold Krille wrote:
Well, I _know_ that 64bit is faster: Here at work I have dual-Xeon's with 2.8GHz, my laptop is a Turion64 with 1.8GHz. The same computation (evaluating scientific data from time-of-flight/lifetime experiments) on the same data-files is significant slower on the work-pc's (almost factor 2). As my threads are one thread for computation and others for loading and saving the data, it is really a comparison of two single processors, where the faster one does even the IO-work itself...
You're really comparing apples to oranges. The AMD and Intel architectures are so different, that you should really be comparing 32bit to 64bit computing on the same machine. One of the side effects that you may end up noticing is that the AMD 64bit architecture makes more CPU registers available for use, and not the fact that you're computing everything in 64bits.
later, Steve
