cpuid : Hyper threading siblings: 16?

[Philip Ashmore <contact@philipashmore.com>]

But cat /proc/cpuinfo says:
...
processor       : 0
vendor_id       : GenuineIntel
cpu family      : 6
model           : 42
model name      : Intel(R) Core(TM) i7-2670QM CPU @ 2.20GHz
stepping        : 7
microcode       : 0x28
cpu MHz         : 2201.000
cache size      : 6144 KB
physical id     : 0
siblings        : 8
core id         : 0
cpu cores       : 4
...

I'm sure the system has 4 cores or 8 hyper-threads.
Am I reading it wrong?

Regards,
Philip Ashmore