<s>
Clarksfield	B-Device
is	O
the	O
code	O
name	O
for	O
an	O
Intel	O
processor	O
,	O
initially	O
sold	O
as	O
mobile	O
Intel	B-Device
Core	I-Device
i7	I-Device
.	O
</s>
<s>
Nehalem	B-Device
microarchitecture	I-Device
and	O
have	O
integrated	O
PCI	O
Express	O
and	O
DMI	B-Architecture
links	O
.	O
</s>
<s>
The	O
predecessor	O
of	O
Clarksfield	B-Device
,	O
Penryn-QC	O
was	O
a	O
multi-chip	B-Algorithm
module	I-Algorithm
with	O
two	O
dual-core	O
Penryn	B-Device
dies	O
based	O
on	O
Penryn	B-Device
microarchitecture	I-Device
,	O
a	O
shrink	O
of	O
Core	B-Device
microarchitecture	I-Device
.	O
</s>
<s>
The	O
name	O
of	O
the	O
direct	O
successor	O
of	O
Clarksfield	B-Device
has	O
not	O
been	O
announced	O
.	O
</s>
<s>
At	O
the	O
time	O
of	O
its	O
release	O
at	O
the	O
Intel	O
Developer	O
Forum	O
on	O
September	O
23	O
,	O
2009	O
,	O
Clarksfield	B-Device
processors	O
were	O
significantly	O
faster	O
than	O
any	O
other	O
laptop	O
processor	O
,	O
including	O
the	O
Core	O
2	O
Extreme	O
QX9300	O
.	O
</s>
<s>
The	O
initial	O
laptop	O
manufacturers	O
shipping	O
products	O
based	O
on	O
Clarksfield	B-Device
processors	O
include	O
MSI	O
,	O
Dell/Alienware	O
,	O
Hewlett-Packard	O
,	O
Toshiba	O
and	O
Asustek	O
.	O
</s>
<s>
As	O
of	O
September	O
2009	O
,	O
all	O
Clarksfield	B-Device
processors	O
are	O
marketed	O
as	O
Core	B-Device
i7	I-Device
,	O
in	O
three	O
product	O
lines	O
differing	O
in	O
thermal	B-General_Concept
design	I-General_Concept
power	I-General_Concept
and	O
the	O
amount	O
of	O
third-level	O
cache	O
that	O
is	O
enabled	O
.	O
</s>
