AMD Richland

17 AMD “RICHLAND” APU | HOT CHIPS 25 | PRAVEEN DONGARA | AUGUST 2013
INTELLIGENT BOOST
EFFICIENT ALLOCATION OF POWER TO INCREASE GPU PERFORMANCE
Traditional Power Allocation
GPU
CU0
CU1
DDR
Northbridge
3W
3W
2W
99°C-1.6GHz
99°C-1.6GHz
96°C-0.3GHz
Efficient Power Allocation
GPU
CU0
CU1
DDR
Northbridge
1W
1W
6W
96°C-0.8GHz
96°C-0.8GHz
96°C-0.75GHz
• CPU power budget at
minimum level to keep
GPU fully utilized
• Reduced CPU
temperature designed to
allow GPU to sustain
higher power level
• Total system performance
increases
CPU Power Allocation
Overall Performance
(CPU + GPU)
GPU-limited,
CPU using too
much power
Balanced
CPU-limited,
GPU starved