Benchmark

Sysbench

sudo apt-get update
sudo apt-get install sysbench
sysbench --num-threads=1 --test=cpu --cpu-max-prime=20000 --validate run

Device	Total time (1-thread)	Total time (all threads)
Xeon E5-1650 (12 threads)	23s	2.46s
RPi1 (1-core)	1412s
RPi2 (4-core)	768s	191s
RPi3 (4-core 64bit)	477s	119s
BeagleBlack (1-core)
UDoo (2-core)	603s	302s
ODroid xu4 (8-core)	372s	60s

Note that for the Xeon(R) E5-1650 @ 3.2GHz,

brb@T3600 ~ $ cat /proc/cpuinfo
processor       : 0
vendor_id       : GenuineIntel
cpu family      : 6
model           : 45
model name      : Intel(R) Xeon(R) CPU E5-1650 0 @ 3.20GHz
stepping        : 7
microcode       : 0x70d
cpu MHz         : 1229.125
cache size      : 12288 KB
physical id     : 0
siblings        : 12
core id         : 0
cpu cores       : 6
apicid          : 0
initial apicid  : 0
fpu             : yes
fpu_exception   : yes
cpuid level     : 13
wp              : yes

brb@T3600 ~ $ lscpu
Architecture:          x86_64
CPU op-mode(s):        32-bit, 64-bit
Byte Order:            Little Endian
CPU(s):                12
On-line CPU(s) list:   0-11
Thread(s) per core:    2
Core(s) per socket:    6
Socket(s):             1
NUMA node(s):          1
Vendor ID:             GenuineIntel
CPU family:            6
Model:                 45
Stepping:              7
CPU MHz:               1221.625
BogoMIPS:              6384.41
Virtualization:        VT-x
L1d cache:             32K
L1i cache:             32K
L2 cache:              256K
L3 cache:              12288K
NUMA node0 CPU(s):     0-11

nbench

wget http://www.tux.org/~mayer/linux/nbench-byte-2.2.3.tar.gz
tar xzvf nbench-byte-2.2.3.tar.gz
cd nbench-byte-2.2.3
make
./nbench