I never noticed until I tried an OC that Armbian uses cpufrequtils and the default max is 1520000 which prob explains why things run so cool.
I will paste the dtb to a googledrive but so far with a small heatsink 65’C max and seems stable @ 2Ghz
sudo nano /etc/default/cpufrequtils
ENABLE=true
MIN_SPEED=1200000
MAX_SPEED=2000000
GOVERNOR=ondemand
sudo systemctl restart cpufrequtils
vs Pi’s https://openbenchmarking.org/result/2108075-IB-2108074IB07
it just got the default ARMv8 Cortex-A53 as forgot how to delete a failed run name
Vs Pi3, Pi4, Tinker, Libre Board ALL-H3-CC H5, Firefly ROC-RK3328-CC
https://openbenchmarking.org/result/2108088-IB-2108077IB73
Its capable of being far closer to the Pi4 than Pi3 I expected.
Remember because of frequtils the 1st bench’s are underclocked to 1.5Ghz
2ghz opp table tried
opp-table {
compatible = "operating-points-v2";
opp-shared;
phandle = <0x45>;
opp-100000000 {
opp-hz = <0x00 0x5f5e100>;
opp-microvolt = <0xb2778>;
};
opp-250000000 {
opp-hz = <0x00 0xee6b280>;
opp-microvolt = <0xb2778>;
};
opp-500000000 {
opp-hz = <0x00 0x1dcd6500>;
opp-microvolt = <0xb2778>;
};
opp-667000000 {
opp-hz = <0x00 0x27bc86aa>;
opp-microvolt = <0xb2778>;
};
opp-1000000000 {
opp-hz = <0x00 0x3b9aca00>;
opp-microvolt = <0xb2778>;
};
opp-1200000000 {
opp-hz = <0x00 0x47868c00>;
opp-microvolt = <0xb2778>;
};
opp-1398000000 {
opp-hz = <0x00 0x5353c980>;
opp-microvolt = <0xb9ca8>;
};
opp-1512000000 {
opp-hz = <0x00 0x5a1f4a00>;
opp-microvolt = <0xc11d8>;
};
opp-1608000000 {
opp-hz = <0x00 0x5fd82200>;
opp-microvolt = <0xcae18>;
};
opp-1800000000 {
opp-hz = <0x00 0x6b49d200>;
opp-microvolt = <0xef808>;
};
opp-2000000000 {
opp-hz = <0x00 0x77359400>;
opp-microvolt = <0xf9830>;
};
};
I gave the GPU a 10% OC
GLmark2 Score: offscreen/onscreen 398/253 (dunno about volts and only really effected on screen)
gpu-opp-table {
compatible = "operating-points-v2";
phandle = <0x42>;
opp-124999998 {
opp-hz = <0x00 0x773593e>;
opp-microvolt = <0xc3500>;
};
opp-249999996 {
opp-hz = <0x00 0xee6b27c>;
opp-microvolt = <0xc3500>;
};
opp-285714281 {
opp-hz = <0x00 0x1107a769>;
opp-microvolt = <0xc3500>;
};
opp-399999994 {
opp-hz = <0x00 0x17d783fa>;
opp-microvolt = <0xc3500>;
};
opp-499999992 {
opp-hz = <0x00 0x1dcd64f8>;
opp-microvolt = <0xc3500>;
};
opp-666666656 {
opp-hz = <0x00 0x27bc86a0>;
opp-microvolt = <0xc3500>;
};
opp-879999985 {
opp-hz = <0x00 0x3473BBF1>;
opp-microvolt = <0xc3500>;
};
};