<s>
The	O
Intel	B-Device
850	I-Device
chipset	O
was	O
the	O
first	O
chipset	O
available	O
for	O
the	O
Pentium	B-General_Concept
4	I-General_Concept
processor	O
,	O
and	O
was	O
simultaneously	O
released	O
in	O
November	O
2000	O
.	O
</s>
<s>
It	O
consists	O
of	O
an	O
82850	O
memory	B-Device
controller	I-Device
hub	I-Device
and	O
an	O
82801BA	O
I/O	B-Device
controller	I-Device
hub	I-Device
.	O
</s>
<s>
The	O
Intel	B-Device
850E	I-Device
chipset	O
added	O
PC1066	O
RDRAM	O
support	O
and	O
533MHz	O
FSB	O
support	O
.	O
</s>
<s>
The	O
Intel	B-Device
850	I-Device
(	O
i850	O
)	O
is	O
the	O
name	O
and	O
family	O
name	O
of	O
the	O
chipset	O
for	O
the	O
NetBurst	O
microprocessor	O
platform	O
announced	O
by	O
Intel	O
in	O
September	O
2001	O
.	O
</s>
<s>
It	O
consists	O
of	O
a	O
hub	O
architecture	O
since	O
the	O
Intel	O
810	O
,	O
which	O
combines	O
the	O
Memory	B-Device
Controller	I-Device
Hub	I-Device
(	O
MCH	O
)	O
,	O
which	O
is	O
equivalent	O
to	O
the	O
north	O
bridge	O
,	O
and	O
the	O
ICH	O
(	O
I	O
/	O
O	O
Controller	O
Hub	O
)	O
,	O
which	O
is	O
equivalent	O
to	O
the	O
south	O
bridge	O
.	O
</s>
<s>
The	O
biggest	O
feature	O
of	O
the	O
Intel	B-Device
850	I-Device
is	O
that	O
it	O
supports	O
dual	O
channel	O
RDRAM	O
.	O
</s>
<s>
The	O
Intel	B-Device
850	I-Device
supports	O
16bit	O
RIMM	O
of	O
PC600	O
or	O
PC800	O
,	O
and	O
the	O
memory	O
bandwidth	O
reached	O
3	O
,	O
2	O
GB/s	O
when	O
using	O
PC800	O
RIMM	O
(	O
Rambus	O
Inline	O
Memory	O
Module	O
)	O
.	O
</s>
<s>
This	O
is	O
three	O
times	O
the	O
memory	O
bandwidth	O
of	O
1	O
,	O
06	O
GB/s	O
of	O
PC133	O
SDRAM	O
,	O
which	O
was	O
the	O
mainstream	O
in	O
the	O
previous	O
generation	O
,	O
and	O
matches	O
the	O
bandwidth	O
of	O
3	O
,	O
2	O
GB/s	O
of	O
FSB	O
of	O
QDR	O
400MHz	O
adopted	O
in	O
Pentium	B-General_Concept
4	I-General_Concept
.	O
</s>
<s>
However	O
,	O
since	O
the	O
memory	O
support	O
has	O
been	O
deferred	O
even	O
in	O
the	O
minor	O
change	O
version	O
of	O
Intel	B-Device
850E	I-Device
whose	O
FSB	O
has	O
been	O
raised	O
to	O
533MHz	O
with	O
a	O
bandwidth	O
of	O
4	O
,	O
2	O
GB/s	O
,	O
it	O
is	O
a	O
specification	O
that	O
the	O
memory	O
bandwidth	O
is	O
insufficient	O
for	O
the	O
bandwidth	O
of	O
FSB	O
when	O
using	O
FSB	O
533MHz	O
.	O
</s>
<s>
The	O
Intel	B-Device
850	I-Device
was	O
launched	O
at	O
the	O
same	O
time	O
as	O
the	O
announcement	O
of	O
the	O
Pentium	B-General_Concept
4	I-General_Concept
as	O
a	O
chipset	O
for	O
the	O
Pentium	B-General_Concept
4	I-General_Concept
system	O
.	O
</s>
<s>
However	O
,	O
the	O
Intel	B-Device
850	I-Device
was	O
hindered	O
by	O
various	O
factors	O
such	O
as	O
the	O
high	O
price	O
of	O
RIMM	O
,	O
and	O
it	O
did	O
not	O
spread	O
as	O
Intel	O
thought	O
.	O
</s>
<s>
While	O
the	O
spread	O
of	O
the	O
Intel	B-Device
850	I-Device
was	O
stagnant	O
,	O
AMD	O
's	O
platform	O
strengthened	O
its	O
presence	O
,	O
and	O
the	O
Intel	O
845	O
,	O
which	O
should	O
have	O
been	O
a	O
low-end	O
product	O
released	O
in	O
a	O
hurry	O
to	O
counter	O
it	O
,	O
became	O
more	O
popular	O
than	O
the	O
Intel	B-Device
850	I-Device
.	O
</s>
<s>
Although	O
the	O
Intel	B-Device
850E	I-Device
with	O
FSB	O
533MHz	O
was	O
announced	O
in	O
May	O
2002	O
,	O
Intel	O
abandoned	O
the	O
spread	O
of	O
the	O
Intel	B-Device
850	I-Device
and	O
RDRAM	O
and	O
switched	O
the	O
mainstay	O
of	O
the	O
Pentium	B-General_Concept
4	I-General_Concept
chipset	O
to	O
the	O
Intel	O
845	O
family	O
.	O
</s>
<s>
In	O
May	O
2003	O
,	O
the	O
Intel	B-Device
850	I-Device
family	O
ended	O
its	O
role	O
with	O
the	O
announcement	O
of	O
its	O
successors	O
,	O
the	O
Intel	O
E7205	O
and	O
Intel	O
E7505	O
.	O
</s>
<s>
In	O
the	O
minor	O
change	O
version	O
of	O
Intel	B-Device
850E	I-Device
,	O
a	O
motherboard	O
compatible	O
with	O
32	O
-	O
bit	O
RIMM	O
is	O
also	O
on	O
sale	O
.	O
</s>
<s>
Early	O
models	O
only	O
supported	O
400	O
MHz	O
,	O
but	O
with	O
the	O
introduction	O
of	O
the	O
FSB	O
533MHz	O
version	O
of	O
Pentium	B-General_Concept
4	I-General_Concept
,	O
the	O
Intel	B-Device
850E	I-Device
supports	O
533MHz	O
operation	O
.	O
</s>
<s>
The	O
Intel	B-Device
850	I-Device
was	O
the	O
first	O
Intel	B-Device
chipset	I-Device
to	O
be	O
supplied	O
by	O
FC-BGA	O
,	O
so	O
it	O
was	O
said	O
that	O
it	O
looked	O
like	O
a	O
Coppermine	O
core	O
when	O
it	O
first	O
appeared	O
.	O
</s>
