AMD Richland

5 AMD “RICHLAND” APU | HOT CHIPS 25 | PRAVEEN DONGARA | AUGUST 2013
EVOLUTION OF AMD TURBO CORE TECHNOLOGY
Year
Processor
Boosting
decision
based on
Notes
2010
AMD Phenom™ II

Number of cores active

Single boost Pstate used if half or more cores are inactive

Coarse-grain power margin exploited
2011
1
st
-Generation
AMD A
-
Series APU

Calculated power

Unidirectional power transfer between thermal entities
 GPUCPU

Exploit fine-grain power margin
2012
2
nd
-Generation
AMD A
-
Series APU

Calculated power

Calculated temperature

Bidirectional power transfer between thermal entities
 GPUCPU
 CPUGPU

Exploit temperature margin
2013
3
rd
-Generation
AMD A
-
Series APU
("Richland“)

Calculated power

Calculated temperature

Measured/Sensor temperature

Efficiency of power usage
by individual
entities (CPU, GPU, etc.)

Designed to more effectively exploit temperature margin
by detecting favorable thermal conditions in real time