Summary: Early last year I decided it was time to build a NAS to store my music, movies, backups, etc. I decided to spend the extra money and go with the Xeon over the i3. The Xeon offered more cores and transcoding power even though I probably didn't need it. The Xeon 1220 V3 has performed very well over the last couple of months. I am able to run multiple streams at once using Plex Media Server without lag. It can handle anything I throw at it.
Summary: Good processor: fast enough for the NAS I've just assembled, relatively inexpensive and fast, and supports ECC so the system overall becomes very robust ( a must for a storage server). My only peeve is that it doesn't support SMT (aka Hyperthreading), so it can only process 4 threads simultaneously instead of 8... but it's not a problem for my use case.
Summary: Not the fastest processor out there (in fact it's one of the slowest Xeon processors available) but it is perfect for my needs. After outgrowing my Windows server, I ventured out to build my own and this little chip has been a fantastic workhorse. I can stream multiple lossless blu-ray movies while also listening to music stored on the server all at the same time (some network issues, but that's not this guy's fault).
Summary: I assembled a couple of pc's for computational works. Core i5-2500, Xeon E3-1220 and Xeon E3-1230. The performances have been very close. Xeon costs more in the RAM (with ECC). But it also works with non-ECC RAM. Compared with a laptop with i3-330M, E3-1220 is around 3 times faster under single core, and 6 times faster under multi-core (running MATLAB). The price is much lower than i7-2600, with HT technology cut.
Summary: Mit dieser CPU sind extreme Stromsparserver (<30 Watt) mit geeigneter sonstiger Hardware (gutes Netzteil, kein Riesenboard etc...) locker machbar. Das ist es aber auch schon, die CPU ist insgesamt doch recht schwach. Wenn man mit 5 bis 10 Watt mehr leben kann würde ich dann doch eine nicht-L CPU nehmen die nur wenig mehr kostet aber deutlich mehr Leistung hat und trotzdem energietechnisch sehr gut skaliert (z.B. der 1230er). Preis / Leistung stimmt hier nicht so ganz.