> skelbejai cia dar nesamones surase, 860-tas 2.8ghz, 750-tas, 2.66. turbo jie 
> tik tiek, tai ir 4670 reiktu rasyt ne 3.4, o 3.8... 

Kazkaip net neatkreipiau demesio, kad "turbinius" daznius suCopyPaste'inau..

Uzmetus aki i skelbiu +edit:
250Lt - i7-860 (8M Cache, 2.93 GHz) 4C/8T_tipo_i7
160Lt - i5-750 (8M Cache, 2.66 GHz) 4C/4T_tipo_i5
100Lt - i5-650 (4M Cache, 3.20 GHz) 2C/4T_tipo_i3

> o pats kai perejau nuo 750 iki 4670, tai eina nx nesikeikiant koks 
> skirtumas ant visokiu sunkiu darbu.

http://www.cpu-world.com/Compare/368/Intel_Core_i5_i5-2500_vs_Intel_Core_i5_i5-750.html
Instruction set extensions:
AES / Advanced Encryption Standard + vs -
AVX / Advanced Vector Extensions + vs -
http://www.cpu-world.com/Compare/378/Intel_Core_i5_i5-4670_vs_Intel_Core_i5_i5-750.html
Instruction set extensions:
AES / Advanced Encryption Standard + vs -
AVX / Advanced Vector Extensions + vs -
AVX2 / Advanced Vector Extensions 2 + vs -
F16C / 16-bit Floating-Point conversion + vs -
FMA3 / 3-operand Fused Multiply-Add + vs -
TSX / Transactional Synchronization Extensions + vs -
Supported memory DDR3-1333, DDR3-1600 vs DDR3-1066, DDR3-1333

> vat salia stovi 2500, tai nuo to iki 4670, neipatingai kazka, labai jau 
> neapciuopiamai geriau.

http://www.cpu-world.com/Compare/421/Intel_Core_i5_i5-2500_vs_Intel_Core_i5_i5-4670.html
Sandy->Ivy->Haswell kazkaip nepamenu didelio performace padidejimo nei vienam perejime..
Aisku po truputi susideda, bet kolkas susiveda i "nelabai apciuopiama/pastebima".
Gal softas, kuris kazka stipriai ispestu ant tu AVX2, F16C, FMA3, TSX ir didesni skirtuma isryskintu.