<s>
The	O
Radeon	B-Device
300	I-Device
series	I-Device
is	O
a	O
series	O
of	O
graphics	B-Architecture
processors	I-Architecture
developed	O
by	O
AMD	O
.	O
</s>
<s>
All	O
of	O
the	O
GPUs	B-Architecture
of	O
the	O
series	O
are	O
produced	O
in	O
28nm	O
format	O
and	O
use	O
the	O
Graphics	B-Architecture
Core	I-Architecture
Next	I-Architecture
(	O
GCN	O
)	O
micro-architecture	O
.	O
</s>
<s>
The	O
series	O
includes	O
the	O
Fiji	O
and	O
Tonga	O
GPU	B-Architecture
dies	O
based	O
on	O
AMD	O
's	O
GCN	O
3	O
or	O
"	O
Volcanic	B-Device
Islands	I-Device
"	O
architecture	O
,	O
which	O
had	O
originally	O
been	O
introduced	O
with	O
the	O
Tonga	O
based	O
(	O
though	O
cut-down	O
)	O
R9	B-Device
285	I-Device
slightly	O
earlier	O
.	O
</s>
<s>
Some	O
of	O
the	O
cards	O
in	O
the	O
series	O
include	O
the	O
Fiji	O
based	O
flagship	O
AMD	O
Radeon	B-Device
R9	I-Device
Fury	I-Device
X	I-Device
,	O
cut-down	O
Radeon	B-Device
R9	I-Device
Fury	I-Device
and	O
small	O
form	O
factor	O
Radeon	B-Device
R9	I-Device
Nano	I-Device
,	O
which	O
are	O
the	O
first	O
GPUs	B-Architecture
to	O
feature	O
High	O
Bandwidth	O
Memory	O
(	O
HBM	O
)	O
technology	O
,	O
which	O
AMD	O
co-developed	O
in	O
partnership	O
with	O
SK	O
Hynix	O
.	O
</s>
<s>
However	O
,	O
the	O
remaining	O
GPUs	B-Architecture
in	O
the	O
series	O
outside	O
the	O
Tonga	O
based	O
R9	B-Device
380	I-Device
and	O
R9	B-Device
380X	I-Device
are	O
based	O
on	O
previous	O
generation	O
GPUs	B-Architecture
with	O
revised	O
power	O
management	O
,	O
and	O
therefore	O
only	O
feature	O
GDDR5	O
memory	O
(	O
something	O
Tonga	O
does	O
as	O
well	O
)	O
.	O
</s>
<s>
The	O
Radeon	B-Device
300	I-Device
series	I-Device
cards	O
including	O
the	O
R9	B-Device
390X	I-Device
were	O
released	O
on	O
June	O
18	O
,	O
2015	O
.	O
</s>
<s>
The	O
flagship	O
device	O
,	O
the	O
Radeon	B-Device
R9	I-Device
Fury	I-Device
X	I-Device
,	O
was	O
released	O
on	O
June	O
24	O
,	O
2015	O
,	O
with	O
the	O
dual-GPU	O
variant	O
,	O
the	O
Radeon	B-Device
Pro	I-Device
Duo	I-Device
,	O
being	O
released	O
on	O
April	O
26	O
,	O
2016	O
.	O
</s>
<s>
The	O
R9	O
380/X	O
along	O
with	O
the	O
R9	B-Device
Fury	I-Device
&	O
Nano	O
series	O
were	O
AMD	O
's	O
first	O
cards	O
(	O
after	O
the	O
earlier	O
R9	B-Device
285	I-Device
)	O
to	O
use	O
the	O
third	O
iteration	O
of	O
their	O
GCN	O
instruction	O
set	O
and	O
micro-architecture	O
.	O
</s>
<s>
AMD	O
TrueAudio	O
was	O
introduced	O
with	O
the	O
AMD	B-Device
Radeon	I-Device
Rx	I-Device
200	I-Device
Series	I-Device
,	O
but	O
can	O
only	O
be	O
found	O
on	O
the	O
dies	O
of	O
GCN	O
2nd	O
gen	O
and	O
later	O
products	O
.	O
</s>
<s>
AMD	O
's	O
SIP	B-Architecture
core	I-Architecture
for	O
video	O
acceleration	O
,	O
Unified	O
Video	O
Decoder	O
and	O
Video	O
Coding	O
Engine	O
,	O
are	O
found	O
on	O
all	O
GPUs	B-Architecture
and	O
are	O
supported	O
by	O
AMD	B-Application
Catalyst	I-Application
and	O
by	O
the	O
open-source	O
Radeon	O
graphics	O
driver	O
.	O
</s>
<s>
A	O
particular	O
focus	O
is	O
on	O
dual	O
GPU	B-Architecture
setups	O
where	O
each	O
GPU	B-Architecture
now	O
renders	O
for	O
one	O
eye	O
individually	O
of	O
the	O
display	O
.	O
</s>
<s>
Originally	O
introduced	O
with	O
the	O
previous	O
generation	O
R9	B-Device
285	I-Device
and	O
R9	B-Device
290	I-Device
series	O
graphics	O
cards	O
,	O
this	O
feature	O
allows	O
users	O
to	O
run	O
games	O
with	O
higher	O
image	O
quality	O
by	O
rendering	O
frames	O
at	O
above	O
native	O
resolution	O
.	O
</s>
<s>
Each	O
frame	O
is	O
then	O
downsampled	B-Algorithm
to	O
native	O
resolution	O
.	O
</s>
<s>
This	O
process	O
is	O
an	O
alternative	O
to	O
supersampling	B-Algorithm
which	O
is	O
not	O
supported	O
by	O
all	O
games	O
.	O
</s>
<s>
Vulkan	O
1.2	O
requires	O
GCN	O
2nd	O
gen	O
or	O
higher	O
with	O
the	O
Adrenalin	O
20.1	O
and	O
Linux	B-Application
Mesa	B-Application
20.0	O
drivers	O
and	O
newer	O
.	O
</s>
<s>
AMD	B-Application
Catalyst	I-Application
is	O
being	O
developed	O
for	O
Microsoft	B-Application
Windows	I-Application
and	O
Linux	B-Application
.	O
</s>
<s>
This	O
may	O
be	O
different	O
for	O
the	O
AMD	B-Application
FirePro	I-Application
brand	O
,	O
which	O
is	O
based	O
on	O
identical	O
hardware	O
but	O
features	O
OpenGL-certified	O
graphics	O
device	O
drivers	O
.	O
</s>
<s>
AMD	B-Application
Catalyst	I-Application
supports	O
all	O
features	O
advertised	O
for	O
the	O
Radeon	O
brand	O
.	O
</s>
<s>
The	O
free	O
and	O
open-source	O
drivers	O
are	O
primarily	O
developed	O
on	O
and	O
for	O
Linux	B-Application
,	O
but	O
have	O
been	O
ported	O
to	O
other	O
operating	O
systems	O
as	O
well	O
.	O
</s>
<s>
The	O
free	O
and	O
open-source	O
radeon	O
kernel	O
driver	O
supports	O
most	O
of	O
the	O
features	O
implemented	O
into	O
the	O
Radeon	O
line	O
of	O
GPUs	B-Architecture
.	O
</s>
<s>
This	O
driver	O
still	O
requires	O
proprietary	O
microcode	O
to	O
operate	O
DRM	B-Application
functions	O
and	O
some	O
GPUs	B-Architecture
may	O
fail	O
to	O
launch	O
the	O
X	O
server	O
if	O
not	O
available	O
.	O
</s>
<s>
It	O
is	O
available	O
on	O
various	O
Linux	B-Application
distributions	O
,	O
and	O
has	O
been	O
ported	O
to	O
some	O
other	O
operating	O
systems	O
as	O
well	O
.	O
</s>
<s>
Only	O
GCN	O
GPUs	B-Architecture
are	O
supported	O
.	O
</s>
<s>
This	O
new	O
driver	O
by	O
AMD	O
was	O
still	O
undergoing	O
development	O
in	O
2018	O
,	O
but	O
could	O
be	O
used	O
on	O
a	O
few	O
supported	O
Linux	B-Application
distributions	O
already	O
(	O
AMD	O
officially	O
supports	O
Ubuntu	O
,	O
RHEL/CentOS	O
)	O
.	O
</s>
<s>
AMDGPU-PRO	O
is	O
set	O
to	O
replace	O
the	O
previous	O
AMD	B-Application
Catalyst	I-Application
driver	O
and	O
is	O
based	O
on	O
the	O
free	O
and	O
open	O
source	O
amdgpu	O
kernel	O
driver	O
.	O
</s>
<s>
Pre-GCN	O
GPUs	B-Architecture
are	O
not	O
supported	O
.	O
</s>
