lars77, on 18 February 2013 - 19:18, said:
Maybe for home PCs, definitely not for office/corporate PCs. There's a huge amount of software, middleware, plugins, drivers, etc. that are specifically 32-bit. Getting this type of stuff to work in a 64-bit environment is often difficult or impossible, good luck trying justifying all the extra expenses to your boss/client. And frankly, most office PCs won't have more than 4 GB RAM.
But yeah, if all the software/hardware you're using is 64-bit compatible & you have 4+ GB RAM then it makes sense to go 64-bit.
Again, you are referring to application issues - not hardware issues. (I specifically mentioned applications as being the bugbear with Windows in general, and XP in particular, in terms of migrating to x64 - I covered it in my posts covering migrating folks I support to x64 - starting with, in fact, XP64.) Further, NONE of my migratees had 4 GB of system RAM at the time of migration. None at all. (Over half had less than 2 GB of RAM - two had a mere 512MB of RAM. However, all of these were home users - not corporate or enterprise users. However, most were also using refurbished corporate or enterprise PCs - which shipped with either Windows XP Professional or even Windows 2000 Professional. Nearly the WORST of possible cases for an x64 migration; however, due to the lack of application issues with home users, I had far easier a time than would have been suspected.
The 4 GB issue - go back to Hardware Hangout and read my posts again. I started the migration trend because of - not in spite of - what I uncovered in my investigation of this particular rubric. My uncovering is, in fact, easily duplicated by anyone with access to virtualization software - simply configure identical virtual machines with each OS in the consideration pool. (Naturally, the host must support at least VT-X for both x32 and x64 to face off in this manner.) The virtualization software itself won't matter. Once the application and driver issues are addressed, the 4 GB floor is, in reality, half that. (It can be , in fact, lowered all the way down to a single gigabyte of RAM - or less - for computers used exclusively for Internet-based tasks - such as Web browsing and e-mail usage - that is exactly why smartphones, tablets, etc - which typically have memory loadouts of that size, or less - are eating PCs for lunch. It's also why I am FAR from surprised over slower sales of larger desktops.)