With the launch today of Hyper-V – available only in x64 versions – I thought that now would be a good time to revisit the topic of “64-bitness.” While it may take a while for client computing to reach the stage where 64-bit is the norm and 32-bit the exception, that day is coming soon for servers – and it may be today. A few quick facts:
- x64 processors have been with us for over 5 years now.
- While I confess I can’t read every single web page on the AMD, Intel, HP, IBM, and Dell sites, last time I checked all currently shipping servers from major OEMs – and obviously the processors in them – were 64-bit.
- Microsoft announced several years ago that Windows Server 2008 would be the last server OS available in 32-bit. (And let’s not overlook the word “server” there! I’m not talking about the desktop.) Windows Server 2008 R2 will be 64-bit only.
- The last time I checked our evaluation download figures, more than half of the downloads were of the x64 edition of Windows Server 2008.
- The virtualization features of today’s processors require 64-bit.