Is this how you're going to spin the 32-bit compatibility feature as a fault?
WTF? The context was the true representative benefit of
using 64 bit coding vs anecodotal reporting. If you can't
keep up with a thread then perhaps you should refrain from
joining in.
I'd bet that the doubled register file, low memory latency, and glueless multiprocessing will boost the average application's performance just fine.
And what does K8's low memory latency have to with coding
for 64 bits? Does the integrated memory controller only work
in long mode? Same goes for MP functionality. Yet you mix
these factors in with "doubled register file", an architectural
feature only available in 64bit code. Perhaps if you had a
working grasp of the basic difference between architecture
and implementation your comments would make more sense.