sysctl -n machdep.cpu.brand_string

system_profiler SPHardwareDataType

Hardware Overview:

  Model Name: iMac
  Model Identifier: iMac13,2
  Processor Name: Intel Core i7
  Processor Speed: 3.4 GHz
  Number of Processors: 1
  Total Number of Cores: 4
  L2 Cache (per Core): 256 KB
  L3 Cache: 8 MB
  Memory: 32 GB
  Boot ROM Version: IM131.010A.B09
  SMC Version (system): 2.11f14
  Serial Number (system): XXXXXXXXXXXXXXXXXXX
  Hardware UUID: XXXXXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXX

system_profiler SPHardwareDataType | grep Identifier

Model Identifier: iMac13,2

system_profiler SPHardwareDataType | grep Processor

system_profiler SPHardwareDataType

sysctl -n machdep.cpu.brand_string
sysctl -a | grep cpu

open http://www.google.com/?q=$(sysctl -n machdep.cpu.brand_string
                              | awk '{FS=" " ; print $2 "+" $3 "+" $4}')+site:ark.intel.com

sysctl -n machdep.cpu.brand_string

clang-3.5 -v -xc /dev/null -O3 -march=native -o- -E 2>&1 | grep -o 'target-cpu w*'

gcc -v -xc /dev/null -O3 -march=native -o- -E 2>&1 | grep -o 'arch=w*'

arch=native
arch=core2        <----- This one
arch=native

gcc -xc /dev/null -O3 -fverbose-asm -march=native -o- -S | grep -o 'arch=w*'

arch=core2