<s>
Extreme	B-General_Concept
Graphics	I-General_Concept
is	O
a	O
computer	O
graphics	O
architecture	O
for	O
Silicon	O
Graphics	O
computer	B-Device
workstations	I-Device
.	O
</s>
<s>
Extreme	B-General_Concept
Graphics	I-General_Concept
was	O
developed	O
in	O
1993	O
and	O
was	O
available	O
as	O
a	O
high-end	O
graphics	O
option	O
on	O
workstations	B-Device
such	O
as	O
the	O
Indigo2	O
,	O
released	O
during	O
the	O
mid-1990s	O
.	O
</s>
<s>
Extreme	B-General_Concept
Graphics	I-General_Concept
gives	O
the	O
workstation	B-Device
real-time	O
2D	O
and	O
3D	O
graphics	O
rendering	O
capability	O
similar	O
to	O
that	O
of	O
even	O
high-end	O
PCs	B-Device
made	O
many	O
years	O
after	O
Extreme	O
's	O
introduction	O
,	O
with	O
the	O
exception	O
of	O
texture	O
rendering	O
which	O
is	O
performed	O
in	O
software	O
.	O
</s>
<s>
Extreme	B-General_Concept
Graphics	I-General_Concept
systems	O
consist	O
of	O
eight	O
Geometry	O
Engines	O
and	O
two	O
Raster	O
Engines	O
,	O
twice	O
as	O
many	O
units	O
as	O
the	O
Elan/XZ	O
graphics	O
used	O
in	O
the	O
Indy	O
,	O
Indigo	O
,	O
and	O
Indigo2	O
.	O
</s>
<s>
The	O
eight	O
geometry	O
engines	O
are	O
rated	O
at	O
256	O
MFLOPS	O
maximum	O
,	O
far	O
faster	O
than	O
the	O
MIPS	O
R4400	O
CPU	O
used	O
in	O
the	O
workstation	B-Device
.	O
</s>
<s>
Extreme	B-General_Concept
Graphics	I-General_Concept
consists	O
of	O
five	O
graphics	O
subsystems	O
:	O
the	O
Command	O
Engine	O
,	O
Geometry	O
Subsystem	O
,	O
Raster	O
Engine	O
,	O
framebuffer	B-Algorithm
and	O
Display	O
Subsystem	O
.	O
</s>
<s>
Extreme	B-General_Concept
Graphics	I-General_Concept
can	O
produce	O
resolutions	O
up	O
to	O
1280	O
x	O
1024	O
pixels	O
with	O
24-bit	O
color	O
and	O
can	O
also	O
process	O
unencoded	O
NTSC	O
and	O
PAL	B-Language
analog	O
television	O
signals	O
.	O
</s>
<s>
The	O
Extreme	B-General_Concept
Graphics	I-General_Concept
architecture	O
was	O
superseded	O
by	O
SGI	O
's	O
IMPACT	O
graphics	O
architecture	O
in	O
1995	O
.	O
</s>
