ECC parity memory on AMD, not on Intel!,
ECC was a standard 10 years ago, but has left Intel's consumer CPUs,
though remaining in AMD consumer CPUs.
I believe all enterprise CPUs (Xeon, Opteron) use ECC memory,
so why should we consider our home computer toys, not needing ECC memory.
Largely for this reason, I bought two AMD CPUs this month, both
AMD Athlon X2 Dual-Core 6000+
which can use the DDR2 ECC memory I purchased.
.
For almost all my computer work, a $100 CPU works well.
Before the last couple years, I would buy $600 and $1100 CPUs.
What I have sought for the last couple years has not been CPU performance,
but CPU/motherboard/memory robutstness..
In my home, I physically replaced the BIOS on one computer,
and saw another computer scramble two separate disk drives possibly because of parity problems arising out of the motherboard's bios,
so the manufacturer issued a bios upgrade.
The robustness of CPU/motherboard/memory is much more difficult to test and talk about than speed, so we hear little about robustness,
but over a year's time many of us experience lack of robustness.
The Debian Linux motto is to make new releases "when it's done", not when the marketing department wants release. Unfortunately, people understandably don't read media unless each issue (whether daily blogs or monthly magazines) has a wealth of information, even when that information greatly diverts attention from what's important.
What we ignore is often more important than what we focus upon -- stop focusing on speed.