<s>
The	O
Cray	B-Device
T90	I-Device
series	O
(	O
code-named	O
Triton	O
during	O
development	O
)	O
was	O
the	O
last	O
of	O
a	O
line	O
of	O
vector	B-Operating_System
processing	I-Operating_System
supercomputers	B-Architecture
manufactured	O
by	O
Cray	O
Research	O
,	O
Inc	O
,	O
superseding	O
the	O
Cray	B-Device
C90	I-Device
series	O
.	O
</s>
<s>
The	O
first	O
machines	O
were	O
shipped	O
in	O
1995	O
,	O
and	O
featured	O
a	O
2.2	O
ns	O
(	O
450MHz	O
)	O
clock	O
cycle	O
and	O
two-wide	O
vector	O
pipes	O
,	O
for	O
a	O
peak	O
speed	O
of	O
1.8	O
gigaflops	O
per	O
processor	O
;	O
the	O
high	O
clock	O
speed	O
arises	O
from	O
the	O
CPUs	O
being	O
built	O
using	O
ECL	B-General_Concept
logic	O
.	O
</s>
<s>
As	O
with	O
the	O
Cray	B-Device
J90	I-Device
,	O
each	O
CPU	O
contained	O
a	O
scalar	O
data	B-General_Concept
cache	I-General_Concept
,	O
in	O
addition	O
to	O
the	O
instruction	O
buffering/caching	O
which	O
has	O
always	O
been	O
in	O
Cray	O
architectures	O
.	O
</s>
<s>
Configurations	O
were	O
available	O
with	O
between	O
four	O
and	O
32	O
processors	O
,	O
and	O
with	O
either	O
IEEE	O
754	O
or	O
traditional	O
Cray	O
floating-point	B-Algorithm
arithmetic	I-Algorithm
;	O
the	O
processors	O
shared	O
an	O
SRAM	B-Architecture
main	O
memory	O
of	O
up	O
to	O
eight	O
gigabytes	O
,	O
with	O
a	O
bandwidth	O
of	O
three	O
64-bit	O
words	O
per	O
cycle	O
per	O
CPU	O
(	O
giving	O
a	O
32-CPU	O
STREAM	O
bandwidth	O
of	O
360	O
gigabytes	O
per	O
second	O
)	O
.	O
</s>
<s>
Cray	B-Device
T90	I-Device
systems	O
were	O
installed	O
at	O
,	O
amongst	O
other	O
places	O
,	O
at	O
least	O
three	O
US	O
government	O
sites	O
,	O
at	O
NAVOCEANO	O
in	O
Mississippi	O
(	O
Bay	O
St.	O
Louis	O
)	O
USA	O
,	O
at	O
NTT	O
and	O
NIED	O
in	O
Japan	O
,	O
at	O
the	O
Ford	O
Motor	O
Company	O
and	O
at	O
General	O
Motors	O
,	O
at	O
NOAA	O
's	O
Geophysical	O
Fluid	O
Dynamics	O
Laboratory	O
,	O
at	O
Forschungszentrum	O
Jülich	O
in	O
Germany	O
,	O
and	O
at	O
the	O
Commissariat	O
à	O
l'Energie	O
Atomique	O
in	O
France	O
.	O
</s>
<s>
Its	O
successor	O
,	O
some	O
years	O
after	O
the	O
last	O
T90s	O
shipped	O
,	O
was	O
the	O
Cray	B-Device
X1	I-Device
.	O
</s>
