> DELL Desktop Precision T1600 Intel Xeon E3-1245 3.3GHz/8MB
>> DELL Desktop Precision T1600 Intel Xeon E3-1225 3.1GHz/8MB

http://en.wikipedia.org/wiki/List_of_Intel_Xeon_microprocessors#.22Sandy_Bridge.22_.2832_nm.29
http://en.wikipedia.org/wiki/List_of_Intel_Core_i5_microprocessors#.22Sandy_Bridge.22_.2832_nm.29_2
http://en.wikipedia.org/wiki/List_of_Intel_Core_i7_microprocessors#.22Sandy_Bridge.22_.2832_nm.29

All models except Xeon E3-1220 and Xeon E3-1225 support Hyper-threading.

taigi, E3-122x atitinka i5, kai kiti i7 .. paprastai su E3 eina ECC non-buffererd RAM, taciau C206 lyg ir ima paprastus.
3.2GHz - E3-1230 / 1235 - $215 / $240
3.3GHz - E3-1240 / 1245 - $250 / $262
3.4GHz - E3-1270 / 1275 - $328 / $339
3.5GHz - E3-1280 / -----  - $612
3.6GHz - E3-1290 / -----  - $885
Pagal kaina idealus yra E3-1230 (E3-1245) - t.y. pirmieji E3_like_i7