Intel finally goes 64-bit like the other processors (see Sparc). Humorously enough, they knew they needed more memory space than 32 bits could afford but didn't want to confuse consumers by going all the way up to 64 bits yet, so the Xeon has 36-bit addressing. The codename for the IA-64 is Merced. Intel does not want to bring this chip to the consumer however, hoping to make a larger profit margin by only putting it in high-end servers.