Some Thoughts on the Current State of 64-bit Computing
Posted Feb 17, 2005 13:02 UTC (Thu) by Kluge
Parent article: Some Thoughts on the Current State of 64-bit Computing
"Let's be honest about it, the speed difference between a 32-bit and 64-bit operating system is marginal at best..."
It's my understanding that 64-bit systems can be slower in principle b/c the 64-bit values take up more room, especially in cache.
However, it's also my understanding that in extending x86 to 64 bits, AMD has somewhat alleviated the deficiencies of x86 by, for instance, providing more registers. So the speed difference of properly optimized x86 and x86-64 binaries *could* be significant.
Is this correct?
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