But there's real technology behind today's 12 new 0.13-micron-process CPUs. Five are low-voltage mobile Athlon XP-M processors -- performance ratings 1400+, 1500+, 1600+, 1700+, and 1800+ -- with small-form-factor microPGA packaging for slimline notebook designs. They're based on AMD's "Thoroughbred" (128K Level 1 and 256K of Level 2 cache) core.<p>
The other new mobile Athlon XP-M processors use AMD's faithful Socket A packaging. They include 2000+, 2200+, 2400+, and 2600+ chips intended for full-sized, desktop-replacement portables; and 2200+, 2400+, and 2500+ CPUs aimed at mid-sized, mainstream notebooks. All, like the low-voltage XP-Ms, use a 266MHz front-side bus. <p>
The last two (mainstream 2400+ and 2500+) skip the "Thoroughbred" for the newer "Barton" core, with 128K of Level 1 and 512K of Level 2 on-chip cache -- which AMD promises will be available for all mobile market segments by mid-2003. For today, the company says, the Athlon XP-M 2500+ outperforms Intel's 2.4GHz mobile Pentium 4 by up to 10 percent on assorted benchmarks.