<s>
Yorkfield	B-Device
is	O
the	O
code	O
name	O
for	O
some	O
Intel	O
processors	O
sold	O
as	O
Core	B-Device
2	I-Device
Quad	O
and	O
Xeon	B-Device
.	O
</s>
<s>
In	O
Intel	O
's	O
Tick-Tock	B-Device
cycle	I-Device
,	O
the	O
2007/2008	O
"	O
Tick	O
"	O
was	O
Penryn	B-Device
microarchitecture	I-Device
,	O
the	O
shrink	O
of	O
the	O
Core	B-Device
microarchitecture	I-Device
to	O
45	B-Algorithm
nanometers	I-Algorithm
as	O
CPUID	O
model	O
23	O
,	O
replacing	O
Kentsfield	B-Device
,	O
the	O
previous	O
model	O
.	O
</s>
<s>
Like	O
its	O
predecessor	O
,	O
Yorkfield	B-Device
multi-chip	B-Algorithm
modules	I-Algorithm
come	O
in	O
two	O
sizes	O
.	O
</s>
<s>
The	O
smaller	O
version	O
is	O
equipped	O
with	O
6MB	O
L2	O
cache	O
,	O
and	O
is	O
commonly	O
called	O
Yorkfield-6M	O
.	O
</s>
<s>
The	O
mobile	O
version	O
of	O
Yorkfield	B-Device
is	O
Penryn-QC	B-Device
and	O
the	O
dual-socket	O
server	O
version	O
is	O
Harpertown	O
.	O
</s>
<s>
The	O
MP	O
server	O
Dunnington	O
chip	O
is	O
a	O
more	O
distant	O
relative	O
based	O
on	O
a	O
different	O
chip	O
but	O
using	O
the	O
same	O
45	B-Algorithm
nm	I-Algorithm
Core	B-Device
microarchitecture	I-Device
.	O
</s>
<s>
The	O
Wolfdale	B-Device
desktop	O
processor	O
is	O
a	O
dual-core	O
version	O
of	O
Yorkfield	B-Device
.	O
</s>
<s>
The	O
successors	O
to	O
Yorkfield	B-Device
are	O
the	O
Nehalem	B-Device
based	O
Lynnfield	B-Device
and	O
Bloomfield	B-Device
.	O
</s>
<s>
Yorkfield	B-Device
(	O
codename	O
for	O
the	O
Core	B-Device
2	I-Device
Quad	O
Q9x5x	O
series	O
and	O
Xeon	B-Device
X33x0	O
series	O
)	O
features	O
a	O
dual-die	O
quad	O
core	O
design	O
with	O
two	O
unified	O
6MB	O
L2	O
caches	O
;	O
their	O
product	O
code	O
is	O
80569	O
.	O
</s>
<s>
They	O
also	O
feature	O
1333MT/s	O
FSB	B-Architecture
and	O
are	O
compatible	O
with	O
the	O
Bearlake	O
chipset	O
.	O
</s>
<s>
Yorkfield	B-Device
CPUs	O
were	O
expected	O
to	O
be	O
released	O
in	O
January	O
2008	O
.	O
</s>
<s>
The	O
release	O
of	O
Yorkfield	B-Device
,	O
however	O
,	O
was	O
delayed	O
to	O
March	O
15	O
,	O
2008	O
.	O
</s>
<s>
Initially	O
this	O
delay	O
was	O
attributed	O
to	O
an	O
error	O
found	O
in	O
the	O
Yorkfield	B-Device
chip	O
,	O
but	O
later	O
reports	O
claimed	O
that	O
the	O
delay	O
was	O
necessary	O
in	O
order	O
to	O
ensure	O
compatibility	O
with	O
the	O
4-layer	O
printed	O
circuit	O
boards	O
utilized	O
by	O
many	O
mainstream	O
motherboards	O
.	O
</s>
<s>
At	O
the	O
Intel	O
Developer	O
Forum	O
2007	O
,	O
a	O
Yorkfield	B-Device
processor	O
was	O
compared	O
with	O
a	O
Kentsfield	B-Device
processor	O
.	O
</s>
<s>
Yorkfield-6M	O
(	O
product	O
code	O
80580	O
)	O
are	O
similar	O
to	O
Yorkfield	B-Device
but	O
are	O
made	O
from	O
two	O
Wolfdale-3M	O
like	O
cores	O
,	O
so	O
they	O
have	O
a	O
total	O
of	O
6	O
MB	O
of	O
L2	O
cache	O
,	O
with	O
3	O
MB	O
shared	O
by	O
two	O
cores	O
.	O
</s>
<s>
They	O
are	O
used	O
in	O
Core	B-Device
2	I-Device
Quad	O
Q8xxx	O
with	O
4	O
MB	O
cache	O
enabled	O
and	O
Core	B-Device
2	I-Device
Quad	O
Q9xxx	O
and	O
Xeon	B-Device
X3320/X3330	O
processors	O
with	O
all	O
of	O
the	O
6	O
MB	O
enabled	O
.	O
</s>
<s>
On	O
November	O
11	O
,	O
2007	O
,	O
Intel	O
released	O
the	O
first	O
Yorkfield	B-Device
XE	O
processor	O
,	O
Core	B-Device
2	I-Device
Extreme	O
QX9650	O
.	O
</s>
<s>
It	O
is	O
the	O
first	O
Intel	O
desktop	O
processor	O
to	O
use	O
45	B-Algorithm
nm	I-Algorithm
technology	O
and	O
high-k	O
metal	O
gates	O
.	O
</s>
<s>
Yorkfield	B-Device
features	O
a	O
dual-die	O
quad	O
core	O
design	O
with	O
two	O
unified	O
level-two	O
(	O
L2	O
)	O
caches	O
of	O
6MB	O
each	O
.	O
</s>
<s>
It	O
also	O
features	O
a	O
1333MT/s	O
FSB	B-Architecture
and	O
clock	O
rate	O
of	O
3GHz	O
.	O
</s>
<s>
The	O
processor	O
incorporates	O
SSE4.1	B-General_Concept
instructions	O
and	O
has	O
total	O
of	O
820	O
million	O
transistors	O
on	O
2x107	O
mm²	O
dies	O
.	O
</s>
<s>
QX9650	O
and	O
QX9770	O
both	O
are	O
labeled	O
as	O
product	O
code	O
80569	O
like	O
Yorkfield	B-Device
,	O
while	O
QX9775	O
,	O
being	O
made	O
for	O
Dual	O
Socket	B-Device
771	I-Device
mainboards	O
,	O
uses	O
product	O
code	O
80574	O
like	O
the	O
Xeon	B-Device
X5482	O
"	O
Harpertown	O
"	O
that	O
it	O
is	O
closely	O
related	O
to	O
.	O
</s>
<s>
The	O
OEM-only	O
Xeon	B-Device
X33x3	O
processors	O
with	O
80	O
W	O
TDP	O
and	O
product	O
code	O
80584	O
are	O
made	O
for	O
Socket	B-Device
771	I-Device
like	O
Harpertown	O
but	O
are	O
only	O
supported	O
in	O
single-socket	O
configurations	O
.	O
</s>
<s>
Like	O
the	O
dual-core	O
Wolfdale-CL	O
processor	O
,	O
these	O
would	O
work	O
in	O
regular	O
Socket	B-Device
775	I-Device
mainboards	O
after	O
modification	O
but	O
are	O
typically	O
used	O
in	O
blade	O
servers	O
that	O
otherwise	O
require	O
DP	O
server	O
processors	O
like	O
Wolfdale-DP	O
or	O
Harpertown	O
.	O
</s>
<s>
Yorkfield	B-Device
was	O
replaced	O
by	O
the	O
45nm	B-Algorithm
Nehalem	B-Device
processor	O
.	O
</s>
