We've just put the finishing touches on an update to our CPU Decoder Ring
. Among the changes are the addition of the newest CPUs (including the Opteron x52 and Pentium 4 6xx series) as well as some older chips that didn't make it into the last update. Additionally, columns have been added to show support for both the NX bit and 64-bit capability. A quick query reveals that 240 processors are currently represented on the chart.
If you know of a processor that isn't represented on the chart or you think we've made an error, send an e-mail and tell us about it. A quick reminder, though: the chart doesn't list anything older than an Athlon XP on the AMD side or a Pentium 4 on the Intel side.