As with all current Pentium II and IIIs the L2 cache runs at half of the core speed, in this case 300MHz. Xeon processors and Celerons both run their cache at full core speed, the Celerons having the L2 cache actually on the die (which makes the final package cheaper although yeild was quite a bit lower in the beggining). TTYL > Hi Guys, > > How fast does the Pentium III 600 Mhz L2 cache bus operate? > > Thanks for your time and good luck in your work, PCBUILD mailing list is brought to you by: The NOSPIN Group http://nospin.com - http://nospin.org