Processor
Identification
This
section
shows
how
to
determine
the
processor
revision
,
program
and
display
the
processor
name
string
,
and
construct
the
processor
name
string
.
Revision
Determination
A
processor
revision
is
identified
using
a
unique
value
that
is
returned
in
the
EAX
register
after
executing
the
CPUID
instruction
function
0000_0001
h
(
CPUID
Fn
0000_0001_
EAX
).
Figure
1
shows
the
format
of
the
value
from
CPUID
Fn
0000_0001_
EAX
.
In
some
cases
,
two
or
more
processor
revisions
may
exist
within
a
stepping
of
a
processor
family
and
are
identified
by
a
unique
value
in
D
18
F
4
x
164
Fixed
Errata
Register
(
see
D
18
F
4
x
164
Fixed
Errata
Register
).
Figure
1.
Format
of
CPUID
Fn
0000_0001_
EAX
The
following
tables
show
the
identification
numbers
from
CPUID
Fn
0000_0001_
EAX
and
D
18
F
4
x
164 (
if
necessary
)
for
each
revision
of
the
processor
to
each
processor
segment
.
"X"
signifies
that
the
revision
has
been
used
in
the
processor
segment
.
"N
/
A"
signifies
that
the
revision
has
not
been
used
in
the
processor
segment
.
Table
2.
CPUID
Values
for
AMD
Family
15
h
Models
00
h-
0
Fh
G
34
r
1
Processor
Revisions
CPUID
Fn
0000_0001_
EAX
,
D
18
F
4
x
164[1:0]
(
Mnemonic
)
AMD
Opteron
™
6200
Series
Processor
AMD
Opteron
™
6300
Series
Processor
00600
F
12
h
, 1
b
(
OR-B
2)
X
00600
F
20
h
, 11
b
(
OR-C
0)
X
48063
Rev
. 3.18
October
2012
Revision
Guide
for
AMD
Family
15
h
Models
00
h-
0
Fh
Processors
Processor
Identification
9