<s>
Socket	B-Device
G1	I-Device
,	O
also	O
known	O
as	O
rPGA	B-Device
988A	I-Device
,	O
is	O
a	O
CPU	O
socket	O
introduced	O
by	O
Intel	O
in	O
2009	O
for	O
the	O
mobile	O
variants	O
of	O
the	O
first-generation	O
Intel	B-Device
Core	I-Device
processors	O
.	O
</s>
<s>
It	O
is	O
the	O
successor	O
to	O
Socket	B-Device
P	I-Device
,	O
and	O
the	O
mobile	O
counterpart	O
to	O
LGA	B-Device
1156	I-Device
and	O
LGA	B-Device
1366	I-Device
.	O
</s>
<s>
The	O
first	O
CPUs	O
for	O
the	O
Socket	B-Device
G1	I-Device
platform	O
were	O
released	O
on	O
September	O
23	O
,	O
2009	O
,	O
in	O
the	O
form	O
of	O
the	O
i7-720QM	O
,	O
820QM	O
,	O
and	O
920XM	O
.	O
</s>
<s>
These	O
CPUs	O
use	O
the	O
Clarksfield	B-Device
core	O
,	O
which	O
maintained	O
the	O
same	O
45	B-Algorithm
nm	I-Algorithm
manufacturing	O
process	O
as	O
the	O
desktop	O
Nehalem	B-Device
architecture	I-Device
.	O
</s>
<s>
On	O
January	O
4	O
,	O
2010	O
,	O
the	O
range	O
was	O
expanded	O
with	O
Core	O
i3	O
,	O
i5	O
,	O
and	O
i7	O
processors	O
using	O
the	O
32	B-Algorithm
nm	I-Algorithm
Arrandale	O
core	O
and	O
based	O
on	O
the	O
Westmere	B-Device
architecture	I-Device
.	O
</s>
<s>
Further	O
Clarksfield-based	O
processors	O
were	O
released	O
as	O
the	O
i7-740QM	O
,	O
840QM	O
,	O
and	O
940XM	O
on	O
June	O
21	O
,	O
2010	O
.	O
</s>
<s>
All	O
Socket	B-Device
G1	I-Device
processors	O
,	O
except	O
for	O
the	O
quad-core	O
i7	O
CPUs	O
have	O
the	O
Intel	O
HD	O
Graphics	O
Ironlake	O
core	O
packaged	O
onto	O
the	O
CPU	O
substrate	O
.	O
</s>
<s>
Socket	B-Device
G1	I-Device
systems	O
can	O
only	O
run	O
in	O
dual-channel	O
memory	O
mode	O
,	O
compared	O
to	O
the	O
triple-channel	O
mode	O
of	O
LGA	B-Device
1366	I-Device
,	O
as	O
a	O
result	O
of	O
the	O
lower	O
pin	O
count	O
.	O
</s>
