post here your battery times with a laptop amd ryzen powered
Mine: power usage(powertop) in idle for linux are 12 W, in windows(hwinfo, sensors, battery) the power decrease to 5 W
the output of cpupower idle-info with amd ryzen( ryzen 5 3550H) tells me :
CPUidle driver: acpi_idle CPUidle governor: menu analyzing CPU 0: Number of idle states: 3 Available idle states: POLL C1 C2 POLL: Flags/Description: CPUIDLE CORE POLL IDLE Latency: 0 Usage: 1270 Duration: 2635 C1: Flags/Description: ACPI FFH MWAIT 0x0 Latency: 1 Usage: 60347 Duration: 17870643 C2: Flags/Description: ACPI IOPORT 0x414 Latency: 400 Usage: 22640 Duration: 59696920
I don't know if in windows there are more. In linux the min frequency and hardware limits are :
output cpupower frequency-info analyzing CPU 0: driver: acpi-cpufreq CPUs which run at the same hardware frequency: 0 CPUs which need to have their frequency coordinated by software: 0 maximum transition latency: Cannot determine or is not supported. hardware limits: 1.40 GHz - 2.10 GHz available frequency steps: 2.10 GHz, 1.70 GHz, 1.40 GHz available cpufreq governors: performance schedutil current policy: frequency should be within 1.40 GHz and 2.10 GHz. The governor "schedutil" may decide which speed to use within this range. current CPU frequency: 2.10 GHz (asserted by call to hardware) boost state support: Supported: no Active: no Boost States: 0 Total States: 3 Pstate-P0: 2100MHz Pstate-P1: 1700MHz Pstate-P2: 1400MHz
for a laptop, windows with hwinfo tells me that cpu min was 400 Mhz, while my intel (i5 4690)pc has 800Mhz.. in a desktop with linux and these c states :
Number of idle states: 6
Available idle states: POLL C1 C1E C3 C6 C7s
POLL:
Flags/Description: CPUIDLE CORE POLL IDLE
Latency: 0
Usage: 641664
Duration: 1570615
C1:
Flags/Description: MWAIT 0x00
Latency: 2
Usage: 5289702
Duration: 929445496
C1E:
Flags/Description: MWAIT 0x01
Latency: 10
Usage: 2574490
Duration: 384566487
C3:
Flags/Description: MWAIT 0x10
Latency: 33
Usage: 3836493
Duration: 1143287787
C6:
Flags/Description: MWAIT 0x20
Latency: 133
Usage: 803906
Duration: 436447532
C7s:
Flags/Description: MWAIT 0x32
Latency: 166
Usage: 3390294
Duration: 3870853067
