AMD Richland

9 AMD “RICHLAND” APU | HOT CHIPS 25 | PRAVEEN DONGARA | AUGUST 2013
BUILDING BLOCKS OF AMD TURBO CORE TECHNOLOGY
PSTATE SELECTION
T
calc
<>
Max
Temp.?
Limit
Pboost0
P0
P1
P2
P3
Pmin
...
Pboost1
T
calculated
Pstates
Discrete frequency and
voltage operating points
If T
calc
< Limit
Step up a Pstate
(i.e., raise F,V)
If T
calc
> Limit
Step down a Pstate
(i.e., lower F,V)