UP_THRESHOLD=75 SAMPLING_RATE=150000 VDD1_OPPS_VSEL="30 20 25 30 33 38 45 45 48 48 54 54 60 67 72" DSP_OPPS_RATE="90 90 180 360 400 430 430 430 430 500 500 500 500 520 520" MIN_FREQ=500000 MAX_FREQ=850000 SMARTREFLEX_VDD1=0 SMARTREFLEX_VDD2=0
@ 125 MHz | @ 250MHz Run #1 Run #2 | Run #1 Run #2 306 308 | 456 462 4033 4036 | 4012 4012 124800 124800 | 249600 249600 2 2 | 3 3 2 2 | 3 3 ---------------------------------- @ 500MHz | @ 850 MHz Run #1 Run #2 | Run #1 Run #2 700 684 | 1279 1276 4020 4017 | 3996 3993 500000 500000 | 849920 849920 4 4 | 10 10 3 3 | 3 3
500MHz seems to be most efficient frequency from power consumption point (least uW/Hz), 850MHz is quite close too. In-line what egoshin said earlier. Based on this information, I'll do more idle trials during nightimes to find out if 500MHz (fixed, single freq) is also best when low load.
Based on graph below (snapshots from Battery-eye), there seems to a small advantage to use both 125MHz and 500MHz instead of only 500MHz. Difference is not too big.