G0 Stepping is related with the proc....like Q6600..
it has reduced the amt of heat generated by q6600..
From Tom's Hardware:-
" Intel has informed its customers that the Core 2
Quad Q6600 desktop quad-core processor as well as the Xeon X3220 and
X3210 server quad-core CPUs have been transitioned to a new stepping,
which will allow customers to integrate the processors in computer
systems using lower power flexible motherboards (FMB).
According to a product change notification released on Friday, the
three processors were transitioned from the B-3 to the G-0 processor
stepping and can now run not only on 105 watt performance FMBs, but on
95 watt mainstream FMBs as well.
The new CPUs, which can be identified by the CPUID "06FB" (B-3
processors were labeled "06F7"), also increase the Tcase, a value that
describes the maximum temperature a CPU can sustain, by 11 degrees
Celsius. According to Intel, this change will allow system builders to
scale back cooling requirements and achieve lower system noise levels
overall.
All three G-0 CPUs require BIOS updates."
hope this helps....
