- A Quick Tutorial on EMT64
- Three Ways to Put 64-bit "Intel Inside" Your Desktop
A Quick Tutorial on EMT64
The 64-bit extensions Intel uses in its Pentium 4 processor (EM64T) are almost identical to the AMD64 architecture first developed by Advanced Micro Devices for the Opteron and Athlon 64 processor families. Unlike the architecture the Intel Itanium family of enterprise server processors use, which requires extensive rewriting of code for speed and runs existing 32-bit software slowly, EM64T-based processors can run existing 32-bit operating systems and software at full speed and with full compatibility. And, as I wrote in my article "64-bit Computing is on Track to Become a Practical Reality," 64-bit operation with Windows is now possible, thanks to Microsoft Windows XP Professional for 64-bit processors. 64-bit operating systems enable larger amounts of memory and disk space to be accessed than with 32-bit operating systems.