The proposed x86S CPU architecture from Intel would ditch support for 32-bit apps and operating systems entirely in favor of 64-bit software, but it could support older apps with virtualization.

The architecture will be the newest entrant to the 64-bit space after Intel, which launched its Itanium architecture in 2001, but which has yet to pick up steam in the market.

In a recent article on The Chip Letter [Babbage] looks at the Intel iAPX 432 computer architecture. This was an ambitious, hyper-CISC architecture that was Intel’s first 32-bit architecture. … ...

At its Analyst Day last week, Intel finally gave notice that it would be scrapping the 32-bit limit and launching a 64-bit platform for the new 22nm chip. According to Intel, 64-bit support will ...

The first real 64-bit architecture was released by Intel with this Itanium processor. What we are now using is the ‘backward compatible’ 64-bit extension to the 32-bit architecture, developed ...

Ever since Intel introduced PAE (physical address extension) in 1995 with the Pentium Pro processors, the Intel 32-bit architecture has been able to address OVER 4 GB of RAM.

As I understand it, you can still run 32-bit applications on the proposed 64-bit only processors. But that would have to happen under some sort of virtualization, i.e. a 64-bit OS providing a ...

And for those who still need 32-bit non-virtualized, I'm sure there would be some product for that, after all we had 32-bit CPUs stick around for a while after the switch to 64-bit.